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Volume 19, Number 8
August, 1991
Geology Cover Image for Volume 19, Issue 8
ISSN: 0091-7613
EISSN: 1943-2682
Geology of the northern Cleft segment, Juan de Fuca Ridge: Recent lava flows, sea-floor spreading, and the formation of megaplumes
R. W. Embley; W. Chadwick; M. R. Perfit; E. T. Baker
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Geochemical evidence for a catastrophic biotic event at the Frasnian/Famennian boundary in south China
Kun Wang; Charles J. Orth; Moses Attrep, Jr.; Brian D. E. Chatterton; Hongfei Hou; Helmut H.J. Geldsetzer
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Evidence for an earliest Oligocene abrupt cooling in the surface waters of the Southern Ocean
Wuchang Wei
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Plutonism, oblique subduction, and continental growth: An example from the Mesozoic of California
Allen F. Glazner
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Drumlins carved by deforming till streams below the Laurentide ice sheet
Joseph I. Boyce; Nicholas Eyles
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Very early Archean crustal-accretion complexes preserved in the North Atlantic craton
Allen P. Nutman; Kenneth D. Collerson
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Mapping of a segment of the Romanche Fracture Zone: A morphostructural analysis of a major transform fault of the equatorial Atlantic Ocean
José Honnorez; Jean Mascle; Christophe Basile; Pierre Tricart; Michel Villeneuve; Hervé Bertrand
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Short-term paleoclimatic fluctuations expressed in lower Mississippian ramp-slope deposits, southwestern Montana
Maya Elrick; J. F. Read; C. Coruh
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Nd-Sr isotopic provenance analysis of Upper Cretaceous Great Valley fore-arc sandstones
Anne M. Linn; Donald J. DePaolo; Raymond V. Ingersoll
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Seismic anisotropy above a subducting plate
Xiao R. Shih; Robert P. Meyer; John F. Schneider
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New evidence for crustal accretion in the outer Mariana fore arc: Cretaceous radiolarian cherts and mid-ocean ridge basalt-like lavas
Lynn E. Johnson; Patricia Fryer; Brian Taylor; Michelle Silk; David L. Jones; William V. Sliter; Tetsumaru Itaya; Teruaki Ishii
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Magmatism along the southeast margin of the Yangtze block: Precambrian collision of the Yangtze and Cathysia blocks of China
Chen Jiangfeng; K. A. Foland; Xing Fengming; Xu Xiang; Zhou Taixi
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Oxygen-isotope exchange and mineral alteration in gabbros of the Lower Layered Series, Kap Edvard Holm Complex, East Greenland
Kristen Fehlhaber; Dennis K. Bird
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Neogene development of the Swan Islands restraining-bend complex, Caribbean Sea
Paul Mann; Stacey A. Tyburski; Eric Rosencrantz
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Piggyback basin in the Sevier orogenic belt, Utah: Implications for development of the thrust wedge
Timothy F. Lawton; James H. Trexler, Jr.
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Tidal-creek extension and saltwater intrusion in northern Australia
A. David Knighton; Kevin Mills; Colin D. Woodroffe
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Orogeny associated with anticlockwise P-T-t paths: Evidence from low-P, high-T metamorphic terranes in the Arunta inlier, central Australia
W. J. Collins; R. H. Vernon
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Oxygen-isotope composition of diagenetic calcite in organic-rich rocks: Evidence for 18O depletion in marine anaerobic pore water
Eytan Sass; Amos Bein; Ahuva Almogi-Labin
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Development of the continent-ocean transform boundary of the southern Exmouth Plateau
Juan M. Lorenzo; John C. Mutter; Roger L. Larson
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Precambrian/Cambrian boundary problem: Carbon isotope correlations for Vendian and Tommotian time between Siberia and Morocco
Mordeckai Magaritz; Joseph L. Kirschvink; Andrew J. Latham; A. Yu. Zhuravlev; A. Yu. Rozanov
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Biogenic methane from abyssal brine seeps at the base of the Florida escarpment
Christopher S. Martens; Jeffrey P. Chanton; Charles K. Paull
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Evidence for major mass transfer and volume strain during regional metamorphism of pelites
Jay J. Ague
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Comment and Reply on "Seismic anisotropy due to preferred mineral orientation observed in shallow crustal rocks in southern Alaska"
Stuart Crampin; Thomas M. Brocher; Nikolas I. Christensen
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Comment on "U/Pb zircon and baddeleyite ages for the Palisades and Gettysburg sills of the northeastern United States: Implications for the age of the Triassic/Jurassic boundary"
Ajoy K. Baksi
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Comment and Reply on "Geobarometry, differential block movements, and crustal structure of the southwestern Abitibi greenstone belt, Canada"
Raymond Goldie; Rui Feng; Rob Kerrich
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Comment and Reply on "Late Holocene erosion and colluvium deposition in Swaziland"
Andrew Watson; Andrew Goudie; David Price Williams; George F. Dardis
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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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