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Volume 129, Number 7-8
1 July 2017
Issue Cover
ISSN: 0016-7606
EISSN: 1943-2674

PALEOCLIMATOLOGY

Lower Cretaceous cold snaps led to widespread glendonite occurrences in the Sverdrup Basin, Canadian High Arctic
Stephen E. Grasby; Gennyne E. McCune; Benoit Beauchamp; Jennifer M. Galloway
View articletitled, Lower Cretaceous cold snaps led to widespread glendonite occurrences in the Sverdrup Basin, Canadian High Arctic
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Extensive Early Cretaceous (Albian) methane seepage on Ellef Ringnes Island, Canadian High Arctic
Krista Williscroft; Stephen E. Grasby; Benoit Beauchamp; Crispin T.S. Little; Keith Dewing; Daniel Birgel; Terry Poulton; Krzysztof Hryniewicz
View articletitled, Extensive Early Cretaceous (Albian) methane seepage on Ellef Ringnes Island, Canadian High Arctic
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LIMNOGEOLOGY

A 40,000 yr record of clay mineralogy at Lake Towuti, Indonesia: Paleoclimate reconstruction from reflectance spectroscopy and perspectives on paleolakes on Mars
Timothy A. Goudge; James M. Russell; John F. Mustard; James W. Head; Satria Bijaksana
View articletitled, A 40,000 yr record of clay mineralogy at Lake Towuti, Indonesia: Paleoclimate reconstruction from reflectance spectroscopy and perspectives on paleolakes on Mars
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QUATERNARY GEOLOGY/GEOMORPHOLOGY

Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India
Tara N. Jonell; Andrew Carter; Philipp Böning; Katharina Pahnke; Peter D. Clift
View articletitled, Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India
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Along-strike variation in catchment morphology and cosmogenic denudation rates reveal the pattern and history of footwall uplift, Main Gulf Escarpment, Baja California
Matthew W. Rossi; Mark C. Quigley; John M. Fletcher; Kelin X. Whipple; J. Jesús Díaz-Torres; Christian Seiler; L. Keith Fifield; Arjun M. Heimsath
View articletitled, Along-strike variation in catchment morphology and cosmogenic denudation rates reveal the pattern and history of footwall uplift, Main Gulf Escarpment, Baja California
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TECTONICS

Path and amount of dextral fault slip in the Eastern California shear zone across the central Mojave Desert
Joseph E. Andrew; J. Douglas Walker
View articletitled, Path and amount of dextral fault slip in the Eastern California shear zone across the central Mojave Desert
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PETROLOGY

Miocene orbicular diorite in east-central Himalaya: Anatexis, melt mixing, and fractional crystallization of the Greater Himalayan Sequence
Zhang Zeming; Xiang Hua; Ding Huixia; Dong Xin; Gou Zhengbin; Tian Zhulin; M. Santosh
View articletitled, Miocene orbicular diorite in east-central Himalaya: Anatexis, melt mixing, and fractional crystallization of the Greater Himalayan Sequence
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STRATIGRAPHY

New age constraints for early Paleogene strata of central Patagonia, Argentina: Implications for the timing of South American Land Mammal Ages
J. Marcelo Krause; William C. Clyde; Mauricio Ibañez-Mejía; Mark D. Schmitz; Timothy Barnum; Eduardo S. Bellosi; Peter Wilf
View articletitled, New age constraints for early Paleogene strata of central Patagonia, Argentina: Implications for the timing of South American Land Mammal Ages
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PRECAMBRIAN GEOLOGY

Neoproterozoic backarc basin on the southeastern margin of the Yangtze block during Rodinia assembly: New evidence from provenance of detrital zircons and geochemistry of mafic rocks
Feng-Feng Zhang; Xiao-Lei Wang; Di Wang; Jin-Hai Yu; Xiao-Hua Zhou; Zi-Ming Sun
View articletitled, Neoproterozoic backarc basin on the southeastern margin of the Yangtze block during Rodinia assembly: New evidence from provenance of detrital zircons and geochemistry of mafic rocks
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ECONOMIC GEOLOGY

Geology of the Don Manuel igneous complex, central Chile: Implications for igneous processes in porphyry copper systems
Amy K. Gilmer; R.S.J. Sparks; Alison C. Rust; Simon Tapster; Adam D. Webb; Dan N. Barfod
View articletitled, Geology of the Don Manuel igneous complex, central Chile: Implications for igneous processes in porphyry copper systems
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GEOCHRONOLOGY

Mesozoic felsic volcanic rocks from the North China craton: Intraplate magmatism associated with craton destruction
Xiao-Fang He; M. Santosh; Sohini Ganguly
View articletitled, Mesozoic felsic volcanic rocks from the North China craton: Intraplate magmatism associated with craton destruction
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STRUCTURAL GEOLOGY

Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA
Richard V. Martin; Roy B. Van Arsdale
View articletitled, Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA
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PALEOCLIMATOLOGY

Clay mineralogical constraints on weathering in response to early Eocene hyperthermal events in the Bighorn Basin, Wyoming (Western Interior, USA)
Chaowen Wang; Rieko Adriaens; Hanlie Hong; Jan Elsen; Noël Vandenberghe; Lucas J. Lourens; Philip D. Gingerich; Hemmo A. Abels
View articletitled, Clay mineralogical constraints on weathering in response to early Eocene hyperthermal events in the Bighorn Basin, Wyoming (Western Interior, USA)
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COMMENT AND REPLY

Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Comment
Ed Landing; Peter D. Kruse
View articletitled, Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Comment
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Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Reply
E.F. Smith; F.A. Macdonald; T.A. Petach; U. Bold
View articletitled, Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Reply
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Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: COMMENT
Jeong-Hyun Lee; Seung-bae Lee
View articletitled, Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: COMMENT
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Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: Reply
Paul M. Myrow; Jitao Chen; Zachary Snyder; Stephen Leslie; David A. Fike; C. Mark Fanning; Jinliang Yuan; Peng Tang
View articletitled, Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: Reply
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  • Cover Image

    Cover Image

    issue cover

    Cover: Field photograph of tubeworm fossils found in methane seep deposits formed in Cretaceous sediments, Ellef Ringnes Island, Canadian High Arctic. Chemosynthetic life flourished at these sites of methane release. Part of one of the largest fields of methane seep deposits known, these features demonstrate the occurrence of a large biogenic methane release associated with Cretaceous climate warming. See “Extensive Early Cretaceous (Albian) methane seepage on Ellef Ringnes Island, Canadian High Arctic” by Williscroft et al., p. 788–805.

    Photo by: Stephen Grasby

    Cover design by: Eric Christensen

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  • Online ISSN 1943-2674
  • ISSN 0016-7606
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