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Volume 48, Number 2
1 February 2020
Issue Cover
ISSN: 0091-7613
EISSN: 1943-2682
In this Issue

Articles

Icequake streaks linked to potential mega-scale glacial lineations beneath an Antarctic ice stream
C. Grace Barcheck; Susan Y. Schwartz; Slawek Tulaczyk
View articletitled, Icequake streaks linked to potential mega-scale glacial lineations beneath an Antarctic ice stream
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Plate-tectonic processes at ca. 2.0 Ga: Evidence from >600 km of plate convergence
An Yin; Günther Brandl; Alfred Kröner
View articletitled, Plate-tectonic processes at ca. 2.0 Ga: Evidence from >600 km of plate convergence
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Explosive interaction of impact melt and seawater following the Chicxulub impact event
Gordon R. Osinski; Richard A.F. Grieve; Patrick J.A. Hill; Sarah L. Simpson; Charles Cockell; Gail L. Christeson; Matthias Ebert; Sean Gulick; H. Jay Melosh; Ulrich Riller; Sonia M. Tikoo; Axel Wittmann
View articletitled, Explosive interaction of impact melt and seawater following the Chicxulub impact event
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Regional and global signals in seawater δ18O records across the mid-Pleistocene transition
Heather L. Ford; Maureen E. Raymo
View articletitled, Regional and global signals in seawater δ<sup>18</sup>O records across the mid-Pleistocene transition
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Carbonate collapse and the late Paleozoic ice age marine biodiversity crisis
Diego Balseiro; Matthew G. Powell
View articletitled, Carbonate collapse and the late Paleozoic ice age marine biodiversity crisis
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Recent inversion of the Tyrrhenian Basin
Nevio Zitellini; César R. Ranero; M. Filomena Loreto; Marco Ligi; Marco Pastore; Filippo D’Oriano; Valenti Sallares; Ingo Grevemeyer; Stefan Moeller; Manel Prada
View articletitled, Recent inversion of the Tyrrhenian Basin
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Lithosphere thickness controls continental basalt compositions: An illustration using Cenozoic basalts from eastern China
Pengyuan Guo; Yaoling Niu; Pu Sun; Hongmei Gong; Xiaohong Wang
View articletitled, Lithosphere thickness controls continental basalt compositions: An illustration using Cenozoic basalts from eastern China
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Salt tectonics in the Eastern Mediterranean Sea: Where a giant delta meets a salt giant
Elchanan Zucker; Zohar Gvirtzman; Josh Steinberg; Yehouda Enzel
View articletitled, Salt tectonics in the Eastern Mediterranean Sea: Where a giant delta meets a salt giant
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Postglacial erosion of bedrock surfaces and deglaciation timing: New insights from the Mont Blanc massif (western Alps)
Benjamin Lehmann; Frédéric Herman; Pierre G. Valla; Georgina E. King; Rabiul H. Biswas; Susan Ivy-Ochs; Olivia Steinemann; Marcus Christl
View articletitled, Postglacial erosion of bedrock surfaces and deglaciation timing: New insights from the Mont Blanc massif (western Alps)
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Forming sulfate- and REE-rich fluids in the presence of quartz
Hao Cui; Richen Zhong; Yuling Xie; Xueyin Yuan; Weihua Liu; Joël Brugger; Chang Yu
View articletitled, Forming sulfate- and REE-rich fluids in the presence of quartz
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X-ray computed tomography reveals that grain protrusion controls critical shear stress for entrainment of fluvial gravels
Rebecca A. Hodge; Hal Voepel; Julian Leyland; David A. Sear; Sharif Ahmed
View articletitled, X-ray computed tomography reveals that grain protrusion controls critical shear stress for entrainment of fluvial gravels
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How shear helps lava to flow
A. Harris; S. Mannini; S. Thivet; M.O. Chevrel; L. Gurioli; N. Villeneuve; A. Di Muro; A. Peltier
View articletitled, How shear helps lava to flow
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Coupled supercontinent–mantle plume events evidenced by oceanic plume record
Luc S. Doucet; Zheng-Xiang Li; Richard E. Ernst; Uwe Kirscher; Hamed Gamal El Dien; Ross N. Mitchell
View articletitled, Coupled supercontinent–mantle plume events evidenced by oceanic plume record
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Geochemical evidence for an orogenic plateau in the southern U.S. and northern Mexican Cordillera during the Laramide orogeny
James B. Chapman; Roy Greig; Gordon B. Haxel
View articletitled, Geochemical evidence for an orogenic plateau in the southern U.S. and northern Mexican Cordillera during the Laramide orogeny
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Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton
Zaicong Wang; Huai Cheng; Keqing Zong; Xianlei Geng; Yongsheng Liu; Jinhui Yang; Fuyuan Wu; Harry Becker; Stephen Foley; Christina Yan Wang
View articletitled, Metasomatized lithospheric mantle for Mesozoic giant gold deposits in the North China craton
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The role of impacts on Archaean tectonics
C. O’Neill; S. Marchi; W. Bottke; R. Fu
View articletitled, The role of impacts on Archaean tectonics
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Deep and extensive meltwater system beneath the former Eurasian Ice Sheet in the Kara Sea
Aleksandr Montelli; Julian A. Dowdeswell; Anastasiya Pirogova; Yana Terekhina; Mikhail Tokarev; Nikita Rybin; Anton Martyn; Vladislav Khoshtariya
View articletitled, Deep and extensive meltwater system beneath the former Eurasian Ice Sheet in the Kara Sea
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Differences in channel and hillslope geometry record a migrating uplift wave at the Mendocino triple junction, California, USA
Fiona J. Clubb; Simon M. Mudd; Martin D. Hurst; Stuart W.D. Grieve
View articletitled, Differences in channel and hillslope geometry record a migrating uplift wave at the Mendocino triple junction, California, USA
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Dry sediment loading of headwater channels fuels post-wildfire debris flows in bedrock landscapes
Roman A. DiBiase; Michael P. Lamb
View articletitled, Dry sediment loading of headwater channels fuels post-wildfire debris flows in bedrock landscapes
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Sea level, carbonate mineralogy, and early diagenesis controlled δ13C records in Upper Ordovician carbonates
David S. Jones; R. William Brothers; Anne-Sofie Crüger Ahm; Nicholas Slater; John A. Higgins; David A. Fike
View articletitled, Sea level, carbonate mineralogy, and early diagenesis controlled δ<sup>13</sup>C records in Upper Ordovician carbonates
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Foundered lithospheric segments dropped into the mantle transition zone beneath southern California, USA
Youqiang Yu; Stephen S. Gao; Kelly H. Liu; Dapeng Zhao
View articletitled, Foundered lithospheric segments dropped into the mantle transition zone beneath southern California, USA
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Research Focus

Do impacts impact global tectonics?
Scott D. King
View articletitled, Do impacts impact global tectonics?
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Erratum

ERRATUM: Why do large, deep rivers have low-angle dune beds?
R.A. Kostaschuk; J.G. Venditti
View articletitled, ERRATUM: Why do large, deep rivers have low-angle dune beds?
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  • Cover Image

    Cover Image

    issue cover

    COVER: The Mer de Glace glacier above Chamonix (European Alps), where Forbes bands were first described. Formed by the alternation of dust (in summer) and snow (in winter) falling in the Geant icefall, Forbes bands illustrate the ice velocity and the flow dynamic of the glacier. See Lehmann et al., “Postglacial erosion of bedrock surfaces and deglaciation timing: New insights from the Mont Blanc massif (western Alps)”, p. 139–144.

    Photo by: B. Lehmann

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  • Online ISSN 1943-2682
  • ISSN 0091-7613
  • Copyright © 2025 Geological Society of America
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