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Volume 18, Number 12
December, 1990
Geology Cover Image for Volume 18, Issue 12
ISSN: 0091-7613
EISSN: 1943-2682
Evidence for large-scale subglacial meltwater flood events in southern Ontario and northern New York State
John Shaw; Robert Gilbert
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Surface uplift, uplift of rocks, and exhumation of rocks
Philip England; Peter Molnar
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Ancient subaerial exposure and freshwater leaching in sandstones
D. Emery; K. J. Myers; R. Young
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Eocene deep-sea communities in localized limestones formed by subduction-related methane seeps, southwestern Washington
James L. Goedert; Richard L. Squires
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Archean and Proterozoic ancestry in late Precambrian to early Paleozoic crustal elements of southern Turkey as revealed by single-zircon dating
A. Kröner; A.M.C. Şengör
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Extreme 13C depletions in seawater-derived brines and their implications for the past geochemical carbon cycle
Boaz Lazar; Jonathan Erez
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Early history of the Michigan basin: Subsidence and Appalachian tectonics
Paul D. Howell; Ben A. van der Pluijm
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Ediacaran remains from intertillite beds in northwestern Canada
H. J. Hofmann; G. M. Narbonne; J. D. Aitken
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Growth, stabilization, and reactivation of Proterozoic lithosphere in the southwestern United States
Samuel A. Bowring; Karl E. Karlstrom
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I-type granitoids as indicators of a late Paleozoic convergent ocean-continent margin along the southern flank of the central European Variscan orogen
F. Finger; H. P. Steyrer
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Direct dating of stromatolitic carbonates from the Schmidtsdrif Formation (Transvaal Dolomite), South Africa, with implications on the age of the Ventersdorp Supergroup
Bor-ming Jahn; J. Bertrand-Sarfati; N. Morin; J. Macé
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Linear coupling of carbon and strontium isotopes in Rotliegend Sandstone, North Sea: Evidence for cross-formational fluid flow
Morgan D. Sullivan; R. Stuart Haszeldine; Anthony E. Fallick
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Kilbuck terrane: Oldest known rocks in Alaska
Stephen E. Box; Elizabeth J. Moll-Stalcup; Joseph L. Wooden; John Y. Bradshaw
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Mantle plumes and flood-basalt stratigraphy in the Paraná, South America
David W. Peate; Chris J. Hawkesworth; Marta S.M. Mantovani; Wladimir Shukowsky
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Phosphogenesis and weathering of shelf sediments from the southeastern United States: Implications for Miocene δ13C excursions and global cooling
John S. Compton; Stephen W. Snyder; David A. Hodell
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Proterozoic supercontinent, its latest Precambrian rifting, breakup, dispersal into smaller continents, and subsidence of their margins: Evidence from Asia
A. V. Ilyin
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Bouguer gravity trends and crustal structure of the Palmyride Mountain belt and surrounding northern Arabian platform in Syria
John A. Best; Muawia Barazangi; Damen Al-Saad; Tarif Sawaf; Ali Gebran
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New structural limits on magma chamber locations at the Valley of Ten Thousand Smokes, Katmai National Park, Alaska
Peter C. Wallmann; David D. Pollard; Wes Hildreth; John C. Eichelberger
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New type of compositional zoning in calcite: Insights into crystal-growth mechanisms
Jeanne Paquette; Richard J. Reeder
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Late Cretaceous age of fractures in the Sierra Nevada batholith, California
Paul Segall; Edwin H. McKee; Stephen J. Martel; Brent D. Turrin
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High-pressure metamorphism and uplift of the Olympic subduction complex
Mark T. Brandon; Arthur R. Calderwood
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Comment and Reply on "Geologic history of the extensional basin of the Gulf of Corinth (?Miocene-Pleistocene), Greece"
Theodor Doutsos; Nikolaos Kontopoulos; G. Poulimenos; D. Frydas; David J. W. Piper; Gian Gabriele Ori
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Comment and Reply on "Kinematic model for southwestern Newfoundland based upon Silurian sinistral shearing"
R. S. Blewett; K. T. Pickering; K. L. Currie; M. A. J. Piasecki
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Comment and Reply on "Use and abuse of crustal accretion calculations"
W. R. Church; John S. Pallister; James C. Cole
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Comment and Reply on "Formation of Mima mounds: A seismic hypothesis"
G. W. Cox; Andrew W. Berg
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Letter
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  • Online ISSN 1943-2682
  • ISSN 0091-7613
  • Copyright © 2025 Geological Society of America
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