@article {1302321, title = {Geochemical constraints on the provenance of pre-Mississippian sedimentary rocks in the North Slope of Yukon and Alaska}, journal = {Geological Society of America Special Papers}, year = {2017}, author = {Nelson L.L. and Strauss, J. V. and Crockford, P. W. and Cox, G. M. and Johnson, B.G. and Ward, W. and Colpron, M. and McClelland, W.C. and Macdonald, Francis A.} } @article {1302319, title = {Pre-Mississippian stratigraphy and provenance of the North Slope subterrane of Arctic Alaska I: Platformal rocks of the northeastern Brooks Range and their significance in circum-Arctic evolution}, journal = {Geological Society of America Special Papers}, year = {2017}, author = {Strauss, J. V. and Macdonald, Francis A. and McClelland, W.C.} } @article {1302318, title = {Cryogenian magmatism along the northwestern margin of Laurentia: plume or rift?}, journal = {Precambrian Research}, year = {2017}, author = {Cox, G. M. and Halverson, G. P. and Denyszyn, S. and Foden, J. and Macdonald, Francis A.} } @article {1302317, title = {Exceptionally-preserved Doushantuo-type microfossils from latest Ediacaran phosphorites of northern Mongolia}, journal = {Geology}, year = {2017}, author = {Anderson, R.P. and Macdonald, Francis A. and Jones, D.S. and McMahon, S. and Briggs, D.E.G.} } @article {1302315, title = {Cryogenian of Yukon}, journal = {Precambrian Research}, year = {2017}, author = {Macdonald, Francis A. and Schmitz, M.D. and Strauss, J. V. and Halverson, G. P. and Gibson, T.M. and Eyster, A. and Cox, G. and Mamrol, P. and Crowley, J.} } @article {1060936, title = {Persistence of a freshwater layer in the surface ocean after Snowball Earth}, journal = {Geology}, volume = {accepted}, year = {2017}, author = {J. Yang and Jansen, M.F. and Macdonald, Francis A. and Abbot, D.S.} } @article {1060901, title = {Bridging the gap between the foreland and the hinterland I: Geochronology and plate tectonic geometry of Ordovician magmatism and terrane accretion on the Laurentian margin of New England}, journal = {American Journal of Science}, volume = {317}, number = {doi:10.2475.05.2017.01}, year = {2017}, pages = {515-554}, author = {Karabinos, P. and Maconald, Francis A. and Crowley, J.L.} } @article {1060891, title = {Bridging the gap between the foreland and the hinterland II: Geochronology and tectonic setting of Ordovician magmatism and basin formation on the Laurentian margin of New England and Newfoundland}, journal = {American Journal of Science}, volume = {317}, number = {doi:10.2475/05.2017.02}, year = {2017}, pages = {555-596}, author = {Macdonald, Francis A. and Karabinos, P. and Crowley, J.L. and Hodgin, E. and Crockford, P. W. and Delano, J.} } @article {1060871, title = {Tropical weathering of the Taconic orogeny as a driver for Ordovician cooling}, journal = {Geology}, volume = {accepted}, year = {2017}, author = {Swanson-Hysell, N.L. and Macdonald, Francis A.} } @article {1060866, title = {Early Cambrian phosphatized archaeocyathans and small shelly fossils (SSFs) of southwestern Mongolia}, journal = {Palaeogeography, Palaeoclimatology, Palaeoecology}, volume = {accepted}, year = {2017}, author = {Pruss, S.B. and Dwyer, C.H. and Smith, E.F. and Macdonald, Francis A. and Tosca, N.J.} } @article {985341, title = {One diamictite and two rifts: Stratigraphy and geochronology of the Gataga Volcanics of northern British Columbia,}, journal = {American Journal of Science}, volume = {accepted}, year = {2017}, author = {Eyster, A.E. and Ferri, F. and Schmitz, M.D. and Macdonald, Francis A.} } @article {985351, title = {Tracking the onset of Phanerozoic-style redox-sensitive trace metal enrichment: New data from basal Ediacaran post-glacial strata in NW Canada}, journal = {Chemical Geology}, year = {2017}, pages = {1-14}, author = {Miller, A.J. and Strauss, J. V. and Halverson, G. P. and Macdonald, Francis A. and Johnston, D. T. and Sperling, E. A.} } @article {890161, title = {Biologically agglutinated eukaryotic microfossil from Cryogenian cap cap carbonates}, journal = {Geobiology}, year = {2017}, pages = {1-17}, author = {Moore, K.R. and Bosak, T. and Macdonald, Francis A. and Lahr, D.J.G. and Newman, S. and Settens, C. and Pruss, S.B.} } @article {890171, title = {Climate dynamics of Snowball Earth and Cryogenian geology{\textendash}geobiology}, journal = {Science Advances}, volume = {accepted}, year = {2017}, author = {Hoffman, P. F. and Abbot, D.S. and Ashkenazy, Y. and Benn, D.I. and Cohen, P.A. and Cox, G. M. and J.R. Creveling and Donnadieu, Y. and Erwin, D. H. and Fairchild, I.J. and Ferreira, D. and Goodman, J.C. and Halverson, G. P. and Jansen, M.F. and Le Hir, G. and Love, G.D. and Macdonald, Francis A. and Maloof, A.C. and Ramstein, G. and Rose, G.E.J. and Rose, C.V. and Tziperman, E. and Voigt, A. and Warren, S.G.} } @article {890151, title = {Initiation of Snowball Earth with volcanic sulfur aerosol emissions}, journal = {Nature Geoscience}, volume = {44}, number = {doi:10.1002/2016GL072335}, year = {2017}, author = {Macdonald, Francis A. and Wordsworth, R.} } @article {890186, title = {Uranium isotope evidence for temporary ocean oxygenation in the aftermath of the Sturtian Snowball Earth}, journal = {Earth and Planetary Science Letters}, volume = {458}, year = {2017}, pages = {282-292}, author = {Lau, K.V. and Macdonald, Francis A. and Maher, K. and Payne, J.L.} } @article {890691, title = {Neoproterozoic to early Paleozoic tectonic evolution of the Zavkhan terrane of Mongolia: Implications for continental growth in the Central Asian orogenic belt}, journal = {Lithosphere}, year = {2016}, author = {Bold, U. and Crowley, J.L. and Smith, Emily F. and Sambuu, Oyungerel and Macdonald, Francis A.} } @article {890701, title = {Paleomagnetic evidence for a large rotation of the Yukon block relative to Laurentia: Implications for a low-latitude Sturtian Glaciation and the breakup of Rodinia}, journal = {Geological Society of America Bulletin}, year = {2016}, author = {Eyster, A.E. and Fu, R. and Strauss, J. V. and Weiss, B.P. and Roots, C.F. and Halverson, G. P. and Evans, D.A.D. and Macdonald, Francis A.} } @article {890696, title = {Paleomagnetism of the Teel basalts from the Zavkhan terrane: Implications for Paleozoic paleogeography in Mongolia and growth of continental crust}, journal = {Lithosphere}, year = {2016}, author = {Kilian, T.M. and Swanson-Hysell, N.L. and Bold, U. and Crowley, J.L. and Macdonald, Francis A.} } @article {890181, title = {Dodging Snowballs: Geochronology of the Gaskiers glaciation and the first appearance of the Ediacaran biota}, journal = {Geology}, year = {2016}, author = {Pu, J. and Bowring, S.A. and Ramezani, J. and Myrow, P. and Landing, E. and Raub, T.D. and Mills, A. and Hodgin, E.B. and Macdonald, Francis A.} } @article {890166, title = {Palaeobiology of the early Ediacaran Shuurgat Formation, Zavkhan Terrane, south-western Mongolia}, journal = {Journal of Systematic Paleontology}, year = {2016}, author = {Anderson, R.P. and McMahon, S. and Bold, U. and Macdonld, F.A. and Briggs, D.E.G.} } @article {665436, title = {Continental flood basalt weathering as a trigger for Neoproterozoic Snowball Earth}, journal = {Earth and Planetary Science Letters}, volume = {446}, year = {2016}, pages = {89-99}, author = {Cox, G. M. and Halverson, G. P. and Stevenson, R.S. and Vokaty, M. and Poirier, A. and Poirier, A. and Kunzmann, M. and Li, Z-X and Denyszyn, S.W. and Strauss, J. V. and Macdonald, Francis A.} } @article {665426, title = {The end of the Ediacaran: Two new exceptionally preserved body fossil assemblages from Mount Dunfee, Nevada, USA}, journal = {Geology}, year = {2016}, author = {Smith, E.F. and Nelson, L.L. and Strange, M.A. and Eyster, A.E. and Rowland, S.M. and Schrag, D.P. and Macdonald, Francis A.} } @article {665391, title = {Low-latitude arc-continent collision as a driver for global cooling}, journal = {Proceedings of the National Academy of Sciences}, volume = {113}, number = {18}, year = {2016}, month = {2016}, pages = {4935-4940}, author = {Jagoutz, O. and Macdonald, Francis A. and Royden, L.} } @article {665401, title = {Neoproterozoic stratigraphy of the Zavkhan terrane of Mongolia: The backbone for Cryogenian and early Ediacaran chemostratigraphic records}, journal = {American Journal of Science}, volume = {316}, year = {2016}, month = {2016}, pages = {1-63}, author = {Bold, U. and Smith, E.F. and Rooney, A.D. and Bowring, S.A. and Dud{\'a}s, F.{\"O}. and Ramezani, J. and Buchwaldt, R. and Crowley, J.C. and Schrag, D.P. and Macdonald, Francis A.} } @article {665406, title = {Triple oxygen and multiple sulfur isotope constraints on the evolution of the post-Marinoan sulfur cycle}, journal = {Earth and Planetary Science Letters}, volume = {435}, year = {2016}, pages = {74-83}, author = {Crockford, P. W. and Cowie, B. R. and Johnston, D. T. and Hoffman, P. F. and Sugiyama, I. and Pellerin, A. and Bui, T.-H. and Hayles, J. and Halverson, G. P. and Macdonald, Francis A. and Wing, B. A.} } @journal {539481, title = {Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia}, journal = {Geological Society of America Bulletin}, volume = {128}, number = {3-4}, year = {2016}, pages = {442-468}, author = {Smith, Emily F. and Macdonald, Francis A. and Petach, Tanya A. and Bold, Uyanga and Schrag, Daniel P.} } @article {989176, title = {Forum Reply}, journal = {Geology}, volume = {42}, number = {6}, year = {2015}, pages = {539-542}, author = {Macdonald, Francis A. and Ryan-Davis, J. and Coish, R.A. and Crowley, J.C. and Karabinos, P.} } @article {987096, title = {Fossils of putative marine algae from the Cryogenian glacial interlude of Mongolia}, journal = {Palaios}, volume = {30}, number = {3}, year = {2015}, pages = {238-247}, author = {Cohen, P.A. and MacDonald, F. A. and Pruss, S.B. and Matys, E. and Bosak, T.} } @article {890726, title = {Oxygen, facies, and secular controls on the appearance of Cryogenian and Ediacaran body and trace fossils in the Mackenzie Mountains of northwestern Canada}, journal = {American Bulletin}, volume = {128}, number = {3-4}, year = {2015}, pages = {558-575}, author = {Sperling, E. A. and Carbonne, C. and Strauss, J. V. and Johnston, D. T. and Narbonne, G. M. and Macdonald, Francis A.} } @article {666941, title = {A Cryogenian Chronology: Two long-lasting synchronous Neoproterozoic glaciations}, journal = {Geology}, volume = {43}, number = {5}, year = {2015}, pages = {459-462}, author = {Rooney, A.D. and Strauss, J. V. and Brandon, A.D. and Macdonald, Francis A.} } @article {666946, title = {Kikiktat volcanics of Arctic Alaska {\textendash} Melting of harzburgitic mantle associated with the Franklin large igneous province}, journal = {Lithosphere}, year = {2015}, pages = {L435-1}, author = {Cox, G. M. and Strauss, J. V. and Halverson, G. P. and Stevenson, R.S. and Schmitz, M.D. and McClelland, W.C. and Macdonald, Francis A.} } @article {665901, title = {Accelerating Neoproterozoic research through scientific drilling}, journal = {Scientific Drilling}, volume = {19}, year = {2015}, pages = {17-25}, author = {Condon, D.J. and Boggani, P. and Fike, D. and Halverson, G. P. and Kasemann, S. and Knoll, A. and Macdonald, Francis A. and Prave, A.R. and Zhu, M.} } @article {665936, title = {Statistical analysis of iron geochemical data suggests limited late Proterozoic oxygenation}, journal = {Nature}, volume = {523}, number = {7561}, year = {2015}, pages = {451-454}, author = {Sperling, E. A. and Wolock,C. and Morgan, A. S. and Gill, B.C. and Kunzmann, M. and Halverson, G. P. and Macdonald, Francis A. and Knoll, A.H. and Johnston, D. T.} } @article {665891, title = {Stratigraphic evolution of the Neoproterozoic Callison Lake Formation: Linking the break-up of Rodinia to the Islay carbon isotope excursion}, journal = {Amercian Journal of Science}, volume = {315}, year = {2015}, pages = {881-944}, author = {Strauss, J. V. and Macdonald, Francis A. and Halverson, G. P. and Tosca, N.J. and Schrag, D.P. and Knoll, A.H.} } @article {539806, title = {New Ediacaran fossils from the uppermost Blueflower Formation, northwest Canada: disentangling biostratigraphy and paleoecology}, journal = {Journal of Paleontology}, volume = {89}, number = {2}, year = {2015}, pages = {281-291}, author = {Carbone, Calla A. and Narbonne, Guy M. and Macdonald, Francis A. and Boag, Thomas H.} } @article {539456, title = {The Proterozoic Record of Eukaryotes}, journal = {Paleobiology}, volume = {DOI: 10.1017/pab.2015.25}, year = {2015}, pages = {1-23}, author = {Cohen, Phoebe A. and Macdonald, Francis A.} } @article {539821, title = {Tectonostratigraphic evolution of the c. 780{\textendash}730 Ma Beck Spring Dolomite: Basin Formation in the core of Rodinia}, journal = {Supercontinent Cycles Through Earth History}, year = {2015}, author = {Smith, Emily F. and Macdonald, Francis A. and Crowley, James L. and Hodgin, Eben B. and Schrag, Daniel P.} } @article {667166, title = {The early Neoproterozoic Chandindu Formation of the Fifteenmile Group in the Ogilvie Mountains}, journal = {Yukon Geological Survey}, year = {2014}, pages = {93-107}, author = {Kunzmann, M. and Halverson, G. P. and Macdonald, Francis A. and Hodgskiss, M. and Sansjofre, P.D. and Schumann, D. and Rainbird, R.H.} } @journal {667146, title = {Geological map of the Coal Creek Inlier, Ogilvie Mountains (NTS 116B/10-15 and 116C/9,16) (1:100,000 scale)}, journal = {Yukon Geological Survey}, year = {2014}, author = {Strauss, J. V. and Roots, C.F. and Macdonald, Francis A. and Halverson, G. P. and Eyster, A.E. and Colpron, M.} } @article {247281, title = {A newly identified Gondwanan terrane in the northern Appalachian Mountains: Implications for the Taconic orogeny and closure of the Iapetus Ocean}, journal = {Geology}, volume = {42}, number = {6}, year = {2014}, pages = {539-542}, abstract = {The Taconic and Salinic orogenies in the northern AppalachianMountains record the closure of the Iapetus Ocean, which separatedperi-Laurentian and peri-Gondwanan terranes in the early Paleozoic.The Taconic orogeny in New England is commonly depicted asan Ordovician collision between the peri-Laurentian Shelburne Fallsarc and the Laurentian margin, followed by Silurian accretion of peri-Gondwanan terranes during the Salinic orogeny. New U-Pb zircongeochronology demonstrates that the Shelburne Falls arc was insteadconstructed on a Gondwanan-derived terrane preserved in the MoretownFormation, which we refer to here as the Moretown terrane.Metasedimentary rocks of the Moretown Formation were depositedafter 514 Ma and contain abundant ca. 535{\textendash}650 Ma detrital zircon thatsuggest a Gondwanan source. The Moretown Formation is bound to thewest by the peri-Laurentian Rowe belt, which contains detrital zirconin early Paleozoic metasedimentary rocks that is indistinguishable inage from zircon in Laurentian margin rift-drift successions. These datareveal that the principal Iapetan suture in New England is between theRowe belt and Moretown terrane, more than 50 km farther west thanpreviously suspected. The Moretown terrane is structurally below andwest of volcanic and metasedimentary rocks of the Hawley Formation,which contains Laurentian-derived detrital zircon, providing a linkbetween peri-Laurentian and peri-Gondwanan terranes. The Moretownterrane and Hawley Formation were intruded by 475 Ma plutonsduring peak activity in the Shelburne Falls arc. We propose that theperi-Laurentian Rowe belt was subducted under the Moretown terranejust prior to 475 Ma, when the trench gap was narrow enoughto deliver Laurentian detritus to the Hawley Formation. Interactionbetween peri-Laurentian and peri-Gondwanan terranes by 475 Ma is20 m.y. earlier than documented elsewhere and accounts for structuralrelationships, Early Ordovician metamorphism and deformation, andthe subsequent closure of the peri-Laurentian Taconic seaway. In thisscenario, a rifted-arc system on the Gondwanan margin resulted in theformation of multiple terranes, including the Moretown, that independentlycrossed and closed the Iapetus Ocean in piecemeal fashion.}, author = {Macdonald, Francis A. and Ryan-Davis, J. and Coish, R.A. and Crowley, J.L. and Karabinos, P.} } @article {247346, title = {740 Ma vase-shaped microfossils from Yukon, Canada: Implications for Neoproterozoic chronology and biostratigraphy}, journal = {Geology}, year = {2014}, abstract = {Biostratigraphy underpins the Phanerozoic time scale, but its application to pre-Ediacaran strata has remained limited because Proterozoic taxa commonly have long or unknown stratigraphic ranges, poorly understood taphonomic constraints, and/or inadequate geochronological context. Here we report the discovery of abundant vase-shaped microfossils from the Callison Lake dolostone of the Coal Creek inlier (Yukon, Canada) that highlight the potentialfor biostratigraphic correlation of Neoproterozoic successions using species-level assemblage zones of limited duration. The fossiliferous horizon, dated here by Re-Os geochronology at 739.9 {\textpm} 6.1 Ma, shares multiple species-level taxa with a well-characterized assemblage from the Chuar Group of the Grand Canyon (Arizona, USA), dated by U-Pb on zircon from an interbedded tuff at 742 {\textpm} 6 Ma. The overlapping age and species assemblages from these two deposits suggest biostratigraphic utility, at least within Neoproterozoic basins of Laurentia, and perhaps globally. The new Re-Os age also confi rms the timing of the Islay δ13Ccarbonate anomaly in northwestern Canada, which predates the onset of the Sturtian glaciation by \>15 m.y. Together these data provide global calibration of sedimentary, paleontological, and geochemical records on the eve of profound environmental and evolutionary change.}, author = {Strauss, Justin V. and Rooney, Alan D. and Macdonald, Francis A. and Brandon, Alan D. and Knoll, Andrew H.} } @article {247256, title = {Neoproterozoic cap-dolostone deposition in stratified glacial meltwater plume}, journal = {Earth and Planetary Sciences Letters}, volume = {404}, year = {2014}, pages = {22-32}, abstract = {Neoproterozoic cap carbonates host distinctive geochemical and sedimentological features that reflect prevailing conditions in the aftermath of Snowball Earth. Interpretation of these features has remained contentious, with hypotheses hinging upon timescale and synchronicity of deposition, and whether or not geochemical signatures of cap carbonates represent those of a well-mixed ocean. Here we present new high-resolution Sr and Mg isotope results from basal Ediacaran cap dolostones in South Australia and Mongolia. Least-altered Sr and Mg isotope compositions of carbonates are identified through a novel incremental leaching technique that monitors the purity of a carbonate sample and the effects of diagenesis. These data can be explained by the formation of these cap dolostones involving two chemically distinct solutions, a glacial meltwater plume enriched in radiogenic Sr, and a saline ocean residue with relatively lower 87Sr/86Sr ratios. Model simulations suggest that these water bodies remained dynamically stratified during part of cap-dolostone deposition, most likely lasting for \~{}8thousand years. Our results can potentially reconcile previous conflicts between timescales estimated from physical mixing models and paleomagnetic constraints. Geochemical data from cap carbonates used to interpret the nature of Snowball Earth and its aftermath should be recast in terms of a chemically distinct meltwater plume.}, author = {Liu, Chao and Wang, Zhengrong and Raub, Timothy D. and Macdonald, Francis A. and Evans, David A.D.} } @article {247336, title = {Re-Os geochronology and coupled Os-Sr isotope constraints on the Sturtian snowball Earth}, journal = {PNAS}, volume = {111}, number = {1}, year = {2014}, pages = {51-56}, abstract = {After nearly a billion years with no evidence for glaciation, iceadvanced to equatorial latitudes at least twice between 717 and635 Mya. Although the initiation mechanism of these NeoproterozoicSnowball Earth events has remained a mystery, the broadsynchronicity of rifting of the supercontinent Rodinia, the emplacementof large igneous provinces at low latitude, and the onset ofthe Sturtian glaciation has suggested a tectonic forcing. We presentunique Re-Os geochronology and high-resolution Os and Sr isotopepro!les bracketing Sturtian-age glacial deposits of the RapitanGroup in northwest Canada. Coupled with existing U-Pb dates, thepostglacial Re-Os date of 662.4 {\textpm} 3.9 Mya represents direct geochronologicalconstraints for both the onset and demise of a Cryogenianglaciation from the same continental margin and suggests a 55-Myduration of the Sturtian glacial epoch. The Os and Sr isotope dataallow us to assess the relative weathering input of old radiogeniccrust and more juvenile, mantle-derived substrate. The preglacialisotopic signals are consistent with an enhanced contribution ofjuvenile material to the oceans and glacial initiation throughenhanced global weatherability. In contrast, postglacial stratafeature radiogenic Os and Sr isotope compositions indicative ofextensive glacial scouring of the continents and intense silicateweathering in a post{\textendash}Snowball Earth hothouse.}, author = {Rooney, Alan D. and Macdonald, Francis A. and Strauss, Justin V. and Dud{\'a}s, Francis {\"O}. and Hallmann, Christian and Selby, David} } @article {247306, title = {Trace Fossils with Spreiten from the Late Ediacaran Nama Group, Namibia: Complex Feeding Patterns Five Million Years Before The Precambrian{\textendash}Cambrian Boundary}, journal = {Journal of Paleontology}, volume = {88}, number = {2}, year = {2014}, pages = {299-308}, abstract = {Here we describe large, complex trace fossils in the late Ediacaran Omkyk Member of the Zaris Formation,Nama Group, southern Namibia. The horizontal trace fossils are preserved on a number of talus blocks from a beddingplane of a cm-thick sandstone lens from a single stratigraphic horizon less than 100 m below an ash bed dated at 547.3 60.7 Ma. The forms consist of overlapping U-shaped spreiten elements with parallel limbs surrounded by an outer tube.Individual U-shaped elements are 0.2 to 1 cm in diameter, the outer tube is less than 3 mm in diameter, and the forms as awhole range from 5 to 30 cm long and 3 to 10 cm wide. The specimens commonly show a change in direction and changein diameter. The morphology of these trace fossils is comparable to backfill structures, particularly specimens of PaleozoicZoophycos from shallow water environments. Here we interpret these horizontal spreiten-burrows to record the grazing ofthe trace-maker on or below a textured organic surface. The identification of large late Ediacaran trace fossils is consistentwith recent reports of backfilled horizontal burrows below the Precambrian{\textendash}Cambrian boundary and is suggestive of theappearance of complex feeding habits prior to the Cambrian trace fossil explosion.}, author = {Macdonald, Francis A. and Pruss, Sara B. and Strauss, Justin V.} } @article {667246, title = {A basin redox transect at the dawn of animal life}, volume = {371-372}, year = {2013}, pages = {143-155}, author = {Sperling, E. A. and Knoll, A.H. and Halverson, G. P. and Macdonald, Francis A. and Johnston, D. T.} } @article {667236, title = {Elevating the Neoproterozoic Tsagaan-Olom Formation to a Group}, journal = {Mongolian Geoscientist}, volume = {39}, number = {5}, year = {2013}, pages = {1-6}, author = {Bold, U. and Macdonald, Francis A. and Smith, E.F. and Crowley, J.L. and Minjin, C.} } @article {247366, title = {Neoproterozoic Iron Formation: An evaluation of its temporal, environmental and tectonic significance}, journal = {Chemical Geology}, year = {2013}, author = {Cox, Grant M. and Halverson, Galen P. and Minarik, William G. and Le Heron, Daniel P. and Macdaonld, Francis A. and Bellefroid, Eric J. and Strauss, Justin V.} } @article {120381, title = {The stratigraphic relationship between the Shuram carbon isotope excursion, the oxygenation of Neoproterozoic oceans, and the first appearance of the Ediacara biota and bilaterian trace fossils in northwestern Canada}, journal = {Chemical Geology}, volume = {362}, year = {2013}, pages = {250-272}, author = {Macdonald, Francis A. and Strauss, Justin V. and Sperling, Erik. A. and Halverson, Galen P. and Narbonne, Guy M. and Johnston, David T. and Kunzmann, Marcus and Schrag, Daniel P. and Higgins, John A.} } @article {111476, title = {Laurentian origin for the North Slope of Alaska: Implications for the tectonic evolution of the Arctic}, journal = {Lithosphere}, year = {2013}, pages = {472-482}, author = {Strauss, J.V. and Macdonald, F.A. and Taylor, J.F. and Repetski, J.E. and McClelland, W.C.} } @article {111471, title = {Searching for an oxygenation event in the fossiliferous Ediacaran of northwestern Canada}, journal = {Chemical Geology}, year = {2013}, pages = {1-13}, author = {Johnston, D.T. and Poulton, S.W. and Tosca, N.J. and O{\textquoteright}Brien, T.O. and Halverson, G.P. and Schrag, D.P. and Macdonald, F.A.} } @article {111456, title = {The Laurentian record of Neoproterozoic glaciation, tectonism, and eukaryotic evolution in Death Valley, California}, journal = {Geological Society of America Bulletin}, volume = {125}, number = {7-8}, year = {2013}, pages = {1203-1223}, author = {Macdonald, F.A. and Prave, A.R. and Petterson, R. and Smith, E.F. and Pruss, S.B. and Oates, K. and Waechter, F. and Trotzuk, D. and Fallick, A.E.} } @article {111306, title = {Depositional history, tectonics, and detrital zircon geochronology of Ordovician and Devonian strata in southwestern Mongolia}, journal = {Geological Society of America Bulletin}, volume = {127}, year = {2013}, pages = {877-893}, author = {Gibson, T.M. and Myrow, P. and Macdonald, F.A. and Minjin, C.} } @article {111296, title = {Mount Harper Volcanic Complex, Ogilvie Mountains: A far-flung occurence of the Franklin igneous event?}, journal = {Yukon Exploration Geology 2012}, year = {2013}, pages = {19-36}, author = {Cox, G.M. and Roots, C.F. and Halverson, G.P. and Minarik, W.G. and Macdonald, F.A. and Hubert-Theou, L.}, editor = {MacFarlane, K.E. and Nordling, M.G. and Sack, P.J.} } @article {111281, title = {Dynamics of a snowball Earth ocean}, journal = {Nature}, volume = {495}, year = {2013}, pages = {90-93}, author = {Ashkenazy, Y. and Gildor, H. and Losch, M. and Macdonald, F.A. and Schrag, D.P. and Tziperman, E.} } @article {111276, title = {Preservational and morphological variability of assemblages of agglutinated eukaryotes in Cryogenian cap carbonates of northern Namibia}, journal = {Palaios}, volume = {28}, year = {2013}, pages = {67-79}, author = {Dalton, L.A. and Bosak, T. and Macdonald, F.A. and Lahr, D.J.G. and Pruss, S.B.} } @article {111261, title = {Authigenic Carbonate and the History of the Global Carbon Cycle}, journal = {Science}, volume = {239}, year = {2013}, pages = {540-543}, author = {Schrag, D.P. and Higgins, J.A. and MacDonald, F. A. and Johnston, D. T.} } @article {111486, title = {Microbial sedimentology of stromatolites in Neoproterozoic cap carbonates}, journal = {Ecosystems Paleobiology and Geobiology}, volume = {19}, year = {2013}, author = {Bosak, T. and Mariotti, G. and Macdonald, F.A. and Perron, J.T. and Pruss, S.B.} } @article {111251, title = {Early Neoproterozoic Basin formation in the Yukon, Canada: Implications for the make-up and break-up of Rodinia}, journal = {Geoscience Canada: Paul Hoffman Series}, volume = {39}, year = {2012}, pages = {77-99}, author = {MacDonald, F. A. and Halverson, G. P. and Strauss, J. V. and Smith, E.F. and Cox, G. M. and Sperling, E. A. and Roots, C.F.} } @article {111231, title = {Uncovering the Neoproterozoic carbon cycle}, journal = {Nature}, volume = {483}, number = {7389}, year = {2012}, pages = {320-323}, author = {Johnston, D.T. and Macdonald, F.A. and Gill, B.C. and Hoffman, P.F. and Schrag, D.P.} } @article {111226, title = {Updated definition and correlation of the lower Fifteenmile Group in the central and eastern Ogilvie Mountains}, journal = {Yukon Exploration Geology 2011}, year = {2012}, pages = {75-90}, author = {Halverson, G.P. and Macdonald, F.A. and Strauss, J.V. and Smith, E.F. and Cox, G.M. and Hubert-Theou, L.}, editor = {MacFarlane, K.E. and Sack, P.J.} } @article {111211, title = {Possible early foraminiferans in post-Sturtian (716-635 Ma) cap carbonates}, journal = {Geology}, volume = {40}, number = {1}, year = {2012}, pages = {67-70}, author = {Bosak, T. and Lahr, D.J.G. and Pruss, S.B. and Macdonald, F.A. and Gooday, A.J. and Dalton, L. and Matys, E.} } @article {667606, title = {Agglutinated tests in post-Sturtian cap carbonates of Namibia and Mongolia}, journal = {Earth and Planetary Science Letters}, volume = {308}, year = {2011}, pages = {29-40}, author = {Bosak, T. and Lahr, D.J.G. and Pruss, S.B. and MacDonald, F. A. and Dalton, L. and Matys, E.} } @article {667616, title = {Sedimentary talc in Neoproterozoic carbonate successions}, journal = {Earth and Planetary Science Letters}, volume = {306}, year = {2011}, pages = {11-22}, author = {Tosca, N.J. and MacDonald, F. A. and Strauss, J. V. and Johnston, D. T. and Knoll, A.H.} } @article {111206, title = {Putative Cryogenian ciliates from Mongolia}, journal = {Geology}, volume = {39}, number = {12}, year = {2011}, pages = {1123-1126}, author = {Bosak, T. and Macdonald, F.A. and Lahr, D.J.G. and Matys, E.} } @article {111191, title = {Phosphate biomineralization in mid-Neoproterozoic protists}, journal = {Geology}, volume = {39}, number = {6}, year = {2011}, pages = {539-542}, author = {Cohen, P.A. and Schopf, J.W. and Butterfield, N.J. and Kudryavtsev, A. and Macdonald, F.A.} } @inbook {110911, title = {Neoproterozoic and early Paleozoic correlations in the western Ogilvie Mountains, Yukon}, booktitle = {Yukon Exploration and Geology 2010}, year = {2011}, pages = {161-182}, author = {MacDonald, F. A. and Smith, E.F. and Strauss, J. V. and Cox, G. M. and Halverson, G. P. and Roots, C.F. and Weston, L.H. and Relf, C.}, editor = {MacFarlane, K.E.} } @inbook {110901, title = {Chemical sediments associated with Neoproterozoic glaciation: iron formation, cap carbonate, barite and phosphorite}, booktitle = {The Geological Record of Neoproterozoic Glaciations}, year = {2011}, pages = {67-80}, publisher = {The Geological Society of London}, organization = {The Geological Society of London}, address = {London}, author = {Hoffman, P.F. and Macdonald, F.A. and Halverson, G.P. and Halverson, G.P. and Shields-Zhou, G.}, editor = {Arnaud, E.} } @inbook {110891, title = {The Tsagaan Oloom Formation, southwestern Mongolia}, booktitle = {The Geological Record of Neoproterozoic Glaciations}, year = {2011}, pages = {331-337}, publisher = {The Geological Society of London}, organization = {The Geological Society of London}, address = {London}, author = {Macdonald, F.A. and Arnaud, E. and Halverson, G.P. and Shields-Zhou, G.} } @inbook {110886, title = {The Khubsugul Group, northern Mongolia}, booktitle = { The Geological Record of Neoproterozoic Glaciations}, year = {2011}, pages = {339-345}, publisher = {The Geological Society of London}, organization = {The Geological Society of London}, address = {London}, author = {Macdonald, F.A. and Jones, D.S. and Halverson, G.P. and Shields-Zhou, G.}, editor = {Arnaud, E.} } @inbook {110881, title = {The Hula Hula Diamictite and Katakturuk Dolomite, Arctic Alaska}, booktitle = {The Geological Record of Neoproterozoic Glaciations}, year = {2011}, pages = {379-387}, publisher = {The Geological Society of London}, organization = {The Geological Society of London}, address = {London}, author = {Macdonald, F.A.}, editor = {Arnaud, E. and Halverson, G.P. and Shields-Zhou, G.} } @inbook {110866, title = {The Tatonduk inlier, Alaska-Yukon border}, booktitle = {The Geological Record of Neoproterozoic Glaciations}, year = {2011}, pages = {389-396}, publisher = {The Geological Society of London}, organization = {The Geological Society of London}, address = {London}, author = {Macdonald, F.A. and Cohen, P.A.}, editor = {Arnaud, E. and Halverson, G.P. and Shields-Zhou, G.} } @article {667621, title = {Sheet-crack cements and early regression in Marinoan (635 Ma) cap dolostones: Regional benchmarks of vanishing ice-sheets?}, journal = {Earth and Planetary Science Letters}, volume = {300}, year = {2010}, pages = {374-384}, author = {Hoffman, P. F. and MacDonald, F. A.} } @article {110851, title = {Calibrating the Cryogenian}, journal = {Science}, volume = {327}, year = {2010}, pages = {1241-1243}, author = {Macdonald, F.A. and Schmitz, M.D. and Crowley, J.L. and Roots, C.F. and Jones, D.S. and Maloof, A.C. and Strauss, J.V. and Cohen, P.A. and Johnston, D.T. and Schrag, D.P.} } @article {110841, title = {Stratigraphy of the Port Nolloth Group of Namibia and South Africa and implications for the age of Neoproterozoic iron formations.}, journal = {American Journal of Science}, volume = {310}, year = {2010}, pages = {862-888}, author = {Macdonald, F.A. and Strauss, J.V. and Rose, C.V. and Dud{\'a}s, F.{\"O}. and Schrag, D.P.} } @article {86941, title = {Microbial facies in a Sturtian cap carbonate, the Rasthof Formation, Otavi Group, northern Namibia}, journal = {Precambrian Research}, volume = {181}, year = {2010}, pages = {187-198}, author = {Pruss, S.B. and Macdonald, F.A. and McLane, M. and Hoffman, P.F.} } @inbook {86936, title = {Upper Fifteenmile Group in the Ogilvie Mountains and correlations of early Neoproterozoic strata in the northern Cordillera}, booktitle = {Yukon Exploration and Geology 2009}, year = {2010}, pages = {237-252}, publisher = {Yukon Geological Survey}, organization = {Yukon Geological Survey}, address = {Whitehorse}, author = {Macdonald, F.A. and Roots, C.F.}, editor = {MacFarlane, K.E. and Weston, L.H. and Blackburn, L.R.} } @article {86916, title = {Early Neoproterozoic scale microfossils in the Lower Tindir Group of Alaska and the Yukon Territory}, journal = {Geology}, volume = {38}, year = {2010}, pages = {143-146}, author = {Macdonald, F.A. and Cohen, P.A. and Dudas, F.O. and Schrag, D.P.} } @article {86181, title = {Stratigraphic and tectonic implications of a new glacial diamictite-cap carbonate couplet in southwestern Mongolia}, journal = {Geology}, volume = {37}, year = {2009}, pages = {123-126}, author = {Macdonald, F.A. and Jones, D.S. and Schrag, D.P.} } @article {86176, title = {Neoproterozoic glaciation on a carbonate platform margin in Arctic Alaska and the origin of the North Slope subterrane}, journal = {Geological Society of America Bulletin}, volume = {121}, year = {2009}, pages = {448-473}, author = {Macdonald, F.A. and Schrag, D.P. and McClelland, W.C. and Macdonald, W.P.} } @mastersthesis {86171, title = {Neoproterozoic stratigraphy of Arctic Alaska and Mongolia}, year = {2009}, type = {PhD Thesis}, author = {Macdonald, F.A.} } @article {86121, title = {Amelia Creek: A Proterozoic impact structure in the Davenport Ranges, Northern Territory}, journal = {Australian Journal of Earth Sciences}, volume = {52}, year = {2005}, pages = {631-640}, author = {Macdonald, F.A. and Mitchell, K. and Stewart, A.J.} } @article {86116, title = {Geology and age of the Glikson impact structure, Western Australia}, journal = {Australian Journal of Earth Sciences}, volume = {52}, year = {2005}, author = {Macdonald, F.A. and Wingate, M.T.D. and Mitchell, K.} } @article {86111, title = {Goat Paddock, Western Australia: An impact crater near the simple-complex transition}, journal = {Australian Journal of Earth Sciences}, volume = {52}, year = {2005}, pages = {691-698}, author = {Milton, D.L. and Macdonald, F.A.} } @article {86106, title = {The Shoemaker legacy to the Australian impact record}, journal = {Australian Journal of Earth Sciences}, volume = {52}, year = {2005}, pages = {477-479}, author = {Shoemaker, C.S. and Macdonald, F.A.} } @article {86101, title = {Geology of five small Australian impact craters}, journal = {Australian Journal of Earth Sciences}, volume = {52}, year = {2005}, pages = {529-544}, author = {Shoemaker, E.M. and Macdonald, F.A. and Shoemaker, C.S.} } @article {667626, title = {Yarabubba {\textendash} a large, deeply eroded major impact structure in the Yilgarn Craton, Western Australia}, journal = {Earth and Planetary Science Letters}, volume = {213}, year = {2003}, pages = {791-795}, author = {MacDonald, F. A. and Bunting, J.A. and Cina, S.E.} } @article {85141, title = {A low temperature transfer of ALH84001 from Mars to Earth}, journal = {Science}, volume = {290}, year = {2000}, pages = {791-795}, author = {Weiss, B.P. and Kirschvink, J.L. and Baudenbacher, F.J. and Vali, H. and Peters, N.T. and Macdonald, F.A. and Wikswo, J.P.} }