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Southwest United States-East Antarctic connection

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Journal Article

New look at the Siberian connection: No SWEAT

James W. Sears, Raymond A. Price
Journal: Geology
Published: 01 May 2000
Geology (2000) 28 (5): 423–426.
DOI: https://doi.org/10.1130/0091-7613(2000)28<423:NLATSC>2.0.CO;2
... Cambrian seafloor spreading. The Siberian–west Laurentian connection provides better correlations among prerift terranes than does the southwest United States–East Antarctic connection (SWEAT), and is more compatible with the overall geologic history of Laurentia and Gondwana. 16 02 2000 19 11...
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Journal Article

New insight on Mesoproterozoic paleogeography from the age and geochemistry of detrital minerals in the Belt Supergroup, USA

Richard M. Gaschnig, Klementina Mato, Aaron Leonard, Reed S. Lewis, Jeff D. Vervoort
Journal: GSA Bulletin
Published: 01 April 2025
GSA Bulletin (2025)
DOI: https://doi.org/10.1130/B37985.1
... (Missoula and Lemhi) Belt zircon Hf results vs. age (shown as symbols) to igneous sources between 2.0 Ga and 1.4 Ga in the southwest United States and Mexico (SWUSA), South Australia Craton (SAC), North Australia Craton (NAC), and East Antarctic Craton (EA), using the global compilation of Puetz et al...
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Early Publication
Journal Article

Southwest U.S.-East Antarctic (SWEAT) connection: A hypothesis

E. M. Moores
Journal: Geology
Published: 01 May 1991
Geology (1991) 19 (5): 425–428.
DOI: https://doi.org/10.1130/0091-7613(1991)019<0425:SUSEAS>2.3.CO;2
... Antarctica into India and Australia. The Wopmay orogen of northwest Canada may extend through eastern Australia into Antarctica and thence beneath the ice to connect with the Yavapai-Mazatzal orogens of the southwestern United States. The ophiolitic belt of the latter may extend into East Antarctica...
View PDF for article title, <span class="search-highlight">Southwest</span> U.S.-<span class="search-highlight">East</span> <span class="search-highlight">Antarctic</span> (SWEAT) <span class="search-highlight">connection</span>: A hypothesis
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Journal Article

Grenville-age magmatism at the South Tasman Rise (Australia): A new piercing point for the reconstruction of Rodinia

A.M. Fioretti, L.P. Black, J. Foden, D. Visonà
Journal: Geology
Published: 01 October 2005
Geology (2005) 33 (10): 769–772.
DOI: https://doi.org/10.1130/G21671.1
... with the Grenville magmatic province of the western United States, and 3) set a unique pivotal point for a precise reconstruction of Rodinia. The resulting scenario implies the presence of a new magmatic province crossing the East Antarctic craton, the extension of Proterozoic belts of southwest Laurentia to East...
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View PDF for article title, Grenville-age magmatism at the South Tasman Rise (Australia): A new piercing point for the reconstruction of Rodinia
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Journal Article

Location of the Nubia-Somalia boundary along the Southwest Indian Ridge

James Lemaux, II, Richard G. Gordon, Jean-Yves Royer
Journal: Geology
Published: 01 April 2002
Geology (2002) 30 (4): 339–342.
DOI: https://doi.org/10.1130/0091-7613(2002)030<0339:LOTNSB>2.0.CO;2
... was determined by segregating 152 anomaly crossings along Southwest Indian Ridge east of Andrew Bain Fracture Zone complex into 24 segments and determining best-fitting rotation for Somalian-Antarctic motion (1.53° about 14.6°N, 49.1°W; σ xx = 0.221, σ xy = 0.236, σ xz = −0.092, σ yy = 0.304...
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View PDF for article title, Location of the Nubia-Somalia boundary along the <span class="search-highlight">Southwest</span> Indian Ridge
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Journal Article

Early Palaeozoic rather than Neoproterozoic volcanism and rifting within the Transantarctic Mountains

I. L. MILLAR, B. C. STOREY
Published: 01 June 1995
Journal of the Geological Society (1995) 152 (3): 417–420.
DOI: https://doi.org/10.1144/gsjgs.152.3.0417
.... United States Geological Survey, Open-file reports 88–557. McKerrow W.S. Scotese C.R. Brasier M.D. Early Cambrian continental reconstructions Journal of the Geological Society, London 1992 149 599 606 Moores E.M. The southwest U.S.-East Antarctic (SWEAT) Connection...
View PDF for article title, Early Palaeozoic rather than Neoproterozoic volcanism and rifting within the Transantarctic Mountains
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Journal Article

The changing face of late Precambrian and early Palaeozoic reconstructions

B.C. STOREY
Published: 01 August 1993
Journal of the Geological Society (1993) 150 (4): 665–668.
DOI: https://doi.org/10.1144/gsjgs.150.4.0665
... continent is, however, a common feature of most reconstructions and its identity has remained as one of the major unsolved problems in Cordilleran geology. Southwest United States, East Antarctic (SWEAT) connection. Moores (1991) suggested, based on comparative geology and the trend of Precambrian orogenic...
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Journal Article

Mesoproterozoic Tasmania: Witness to the East Antarctica–Laurentia connection within Nuna

Jacob A. Mulder, Jacqueline A. Halpin, Nathan R. Daczko
Journal: Geology
Published: 01 September 2015
Geology (2015) 43 (9): 759–762.
DOI: https://doi.org/10.1130/G36850.1
... Cape Group detrital signature. Paleocurrent data indicate that the majority of sediment in the Rocky Cape Group was sourced from Laurentia, which was to the southeast (present-day coordinates) of Tasmania, supporting a SWEAT-like (southwest United States–East Antarctica) configuration for Nuna. We...
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View PDF for article title, Mesoproterozoic Tasmania: Witness to the <span class="search-highlight">East</span> Antarctica–Laurentia <span class="search-highlight">connection</span> within Nuna
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Journal Article

Late Proterozoic to Early Palaeozoic tectonism in Dronning Maud Land, Antarctica: supercontinental fragmentation and amalgamation

A. B. MOYES, J. M. BARTON, Jr, P. B. GROENEWALD
Published: 01 September 1993
Journal of the Geological Society (1993) 150 (5): 833–842.
DOI: https://doi.org/10.1144/gsjgs.150.5.0833
... structure in the Shackleton Range and north Victoria Land (Antarctica). In: Ulbrich, H. & Rocha Campos A. C. (eds) Gondwana Seven Proceedings, Sâo Paulo, 19–32. Moores E. M. The southwest U. S.-East Antarctic (SWEAT) connection: a hypothesis Geology 1991 19 425 428 Moyes, A. B...
View PDF for article title, Late Proterozoic to Early Palaeozoic tectonism in Dronning Maud Land, Antarctica: supercontinental fragmentation and amalgamation
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Journal Article

Paleogeographic implications of non–North American sediment in the Mesoproterozoic upper Belt Supergroup and Lemhi Group, Idaho and Montana, USA

Eric D. Stewart, Paul K. Link, C. Mark Fanning, Carol D. Frost, Michael McCurry
Journal: Geology
Published: 01 October 2010
Geology (2010) 38 (10): 927–930.
DOI: https://doi.org/10.1130/G31194.1
... for Microsoft Excel : Berkeley , California, Berkeley Geochronology Center Special Publication 4 . Moores E.M. , 1991 , Southwest U.S.–East Antarctic (SWEAT) connection: A hypothesis : Geology , v. 19 , p. 425 – 428 , doi: 10.1130/0091-7613(1991)019<0425:SUSEAS>2.3.CO;2 . Munizaga...
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View PDF for article title, Paleogeographic implications of non–North American sediment in the Mesoproterozoic upper Belt Supergroup and Lemhi Group, Idaho and Montana, USA
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Journal Article

The Grenville Province within Antarctica: a test of the SWEAT hypothesis

B. C. STOREY, R. J. PANKHURST, A. C. JOHNSON
Published: 01 February 1994
Journal of the Geological Society (1994) 151 (1): 1–4.
DOI: https://doi.org/10.1144/gsjgs.151.1.0001
... Monographs Moores E. M. Southwest U.S.–East Antarctic (SWEAT) connection: a hypothesis Geology 1991 19 425 428 Pankhurst R. J. Marsh P. D. Clarkson P. D. Oliver R. L. James P. R. Jago J. B. A geochronological investigation of the Shackleton Range Antarctic...
View PDF for article title, The Grenville Province within Antarctica: a test of the SWEAT hypothesis
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Journal Article

The life and death of a subglacial lake in West Antarctica

M.R. Siegfried, R.A. Venturelli, M.O. Patterson, W. Arnuk, T.D. Campbell, C.D. Gustafson, A.B. Michaud, B.K. Galton-Fenzi, M.B. Hausner, S.N. Holzschuh, B. Huber, K.D. Mankoff, D.M. Schroeder, P.T. Summers, S. Tyler, S.P. Carter, H.A. Fricker, D.M. Harwood, A. Leventer, B.E. Rosenheim, M.L. Skidmore, J.C. Priscu, the SALSA Science Team
Journal: Geology
Published: 09 March 2023
Geology (2023) 51 (5): 434–438.
DOI: https://doi.org/10.1130/G50995.1
..., 1543441, 1543537, 1832109, 1832170, and 1836328) and NASA (grants 80NSSC20K1734 and 80NSSC21K0912). We thank the United States Antarctic Program; Kenn Borek Air; the New York Air National Guard; UNAVCO; the Center for Transformative Environmental Monitoring Programs (jointly operated by Oregon State...
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Journal Article

Early Cambrian carbonatite in Antarctica

C. E. HALL, A. F. COOPER, D. L. PARKINSON
Published: 01 August 1995
Journal of the Geological Society (1995) 152 (4): 721–728.
DOI: https://doi.org/10.1144/gsjgs.152.4.0721
... Moores E.M. Southwest U.S.–East Antarctic (SWEAT) Connection: A hypothesis Geology 1991 19 425 428 Mungall J. A 1050 Ma pyroxenite-carbonatite suite near Pembroke, Ontario Geological Association of Canada–Mineralogical Association of Canada, Program with Abstracs 1989 14 A24...
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Journal Article

Age and Provenance of the Beardmore Group, Antarctica: Constraints on Rodinia Supercontinent Breakup

J. W. Goodge, P. Myrow, I. S. Williams, S. A. Bowring
Published: 01 July 2002
The Journal of Geology (2002) 110 (4): 393–406.
DOI: https://doi.org/10.1086/340629
... depositional relationship with underlying and overlying units. It is certainly younger than the crystalline basement of the East Antarctic Shield (represented by the Archean and Paleoproterozoic Nimrod Group to the west), and some have suggested that it is allochthonous with respect to the cratonic margin...
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View PDF for article title, Age and Provenance of the Beardmore Group, Antarctica: Constraints on Rodinia Supercontinent Breakup
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Journal Article

Late Neoproterozoic 40° intraplate rotation within Australia allows for a tighter-fitting and longer-lasting Rodinia

Zheng-Xiang Li, David A.D. Evans
Journal: Geology
Published: 01 January 2011
Geology (2011) 39 (1): 39–42.
DOI: https://doi.org/10.1130/G31461.1
... and evolution history of the supercontinent. At the core of the debate is how Australia and East Antarctica were connected to western Laurentia; competing models include the classic southwest United States−East Antarctic (SWEAT) connection ( Moores, 1991 ), the Australia−southwest United States (AUSWUS) model...
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Journal Article

Bransfield Basin, Antarctic Peninsula: Not a normal backarc basin

José M. González-Casado, Jorge L. Giner Robles, Jerónimo López-Martínez
Journal: Geology
Published: 01 November 2000
Geology (2000) 28 (11): 1043–1046.
DOI: https://doi.org/10.1130/0091-7613(2000)28<1043:BBAPNA>2.0.CO;2
... Scotia Ridge region corresponds to the east-west boundary between the Antarctic and the Scotia plates; the right dihedra diagram shows a northwest-southeast subhorizontal extension, and a perpendicular northeast-southwest sub-horizontal compression. This stress tensor orientation is consistent...
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View PDF for article title, Bransfield Basin, <span class="search-highlight">Antarctic</span> Peninsula: Not a normal backarc basin
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Journal Article

Provenance and age constraints of Paleozoic siliciclastic rocks from the Ellsworth Mountains in West Antarctica, as determined by detrital zircon geochronology

Paula Castillo, C. Mark Fanning, Rodrigo Fernandez, Fernando Poblete, Francisco Hervé
Journal: GSA Bulletin
Published: 14 July 2017
GSA Bulletin (2017) 129 (11-12): 1568–1584.
DOI: https://doi.org/10.1130/B31686.1
... in composition from basanite to rhyolite and gabbro are dated at ca. 680–670 Ma ( Cooper et al., 2010 ; Goodge et al., 2002 ). These rocks are believed to reflect the fragmentation of Rodinia, i.e., the rifting of Laurentia to form the paleo–Pacific Ocean, consistent with the southwest United States–East...
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View PDF for article title, Provenance and age constraints of Paleozoic siliciclastic rocks from the Ellsworth Mountains in West Antarctica, as determined by detrital zircon geochronology
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Journal Article

An active Neoproterozoic margin: evidence from the Skelton Glacier area, Transantarctic Mountains

A. J. ROWELL, M. N. REES, E. M. DUEBENDORFER, E. T. WALLIN, W. R. VAN SCHMUS, E. I. SMITH
Published: 01 August 1993
Journal of the Geological Society (1993) 150 (4): 677–682.
DOI: https://doi.org/10.1144/gsjgs.150.4.0677
... Ludwig, K. R., 1988b. ISOPLOT: A plotting and regression program for radiogenic isotope data for IBM-PC compatible computors. US Geological Survey Open File Reports, 88–557 Moores E. M. Southwest U.S.–East Antarctica (SWEAT) connection: A hypothesis Geology 1991 19 425 428...
View PDF for article title, An active Neoproterozoic margin: evidence from the Skelton Glacier area, Transantarctic Mountains
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Journal Article

Laurentia-Kalahari Collision and the Assembly of Rodinia

Ian W. D. Dalziel, Sharon Mosher, Lisa M. Gahagan
Published: 01 September 2000
The Journal of Geology (2000) 108 (5): 499–513.
DOI: https://doi.org/10.1086/314418
... the results of a paleomagnetic test of the Southwest United States–East Antarctica (SWEAT) hypothesis of Moores ( 1991 ) and Dalziel ( 1991 ) that the Grenville Orogen of Laurentia formerly continued into the Maudheim province along the Weddell Sea margin of the East Antarctic Craton. The data obtained...
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View PDF for article title, Laurentia-Kalahari Collision and the Assembly of Rodinia
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Journal Article

The Mesoproterozoic Baoban Complex, South China: A missing fragment of western Laurentian lithosphere

Ya-Jun Xu, Peter A. Cawood, Hang-Chuan Zhang, Jian-Wei Zi, Jin-Bo Zhou, Li-Xing Li, Yuan-Sheng Du
Journal: GSA Bulletin
Published: 05 November 2019
GSA Bulletin (2020) 132 (7-8): 1404–1418.
DOI: https://doi.org/10.1130/B35380.1
... been proposed for the disposition of its constituent continental fragments (e.g., Zhao et al., 2002 ; Rogers and Santosh, 2002 ; Meert, 2002 ). All contain a common core consisting of Laurentia, Siberia and Baltica, and most suggest a southwest United States-East Antarctic configuration having...
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