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Volume 45, Number 8
1 August 2017
Issue Cover
ISSN: 0091-7613
EISSN: 1943-2682
In this Issue

Articles

The late Paleozoic Southwestern Laurentian Borderland
Timothy F. Lawton; Patricia H. Cashman; James H. Trexler, Jr.; Wanda J. Taylor
View articletitled, The late Paleozoic Southwestern Laurentian Borderland
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Volcanic ash stimulates growth of marine autotrophic and heterotrophic microorganisms
Rui Zhang; Tao Jiang; Yuan Tian; Shucheng Xie; Lian Zhou; Qian Li; Nianzhi Jiao
View articletitled, Volcanic ash stimulates growth of marine autotrophic and heterotrophic microorganisms
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Whole-rock geochemistry tracks precessional control of Pleistocene lake salinity at Olduvai Gorge, Tanzania: A record of authigenic clays
D.M. Deocampo; P.A. Berry; E.J. Beverly; G.M. Ashley; R.E. Jarrett
View articletitled, Whole-rock geochemistry tracks precessional control of Pleistocene lake salinity at Olduvai Gorge, Tanzania: A record of authigenic clays
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Nitrogen-fixing symbiosis inferred from stable isotope analysis of fossil tree rings from the Oligocene of Ethiopia
Erik L. Gulbranson; Bonnie F. Jacobs; William C. Hockaday; Michael C. Wiemann; Lauren A. Michel; Kaylee Richards; John W. Kappelman
View articletitled, Nitrogen-fixing symbiosis inferred from stable isotope analysis of fossil tree rings from the Oligocene of Ethiopia
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Atmospheric sulfur in the orogenic gold deposits of the Archean Yilgarn Craton, Australia
Vikraman Selvaraja; Stefano Caruso; Marco L. Fiorentini; Crystal K. LaFlamme; Thi-Hao Bui
View articletitled, Atmospheric sulfur in the orogenic gold deposits of the Archean Yilgarn Craton, Australia
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Evidence for 3.3-billion-year-old oceanic crust in the Barberton greenstone belt, South Africa
Eugene G. Grosch; Jiri Slama
View articletitled, Evidence for 3.3-billion-year-old oceanic crust in the Barberton greenstone belt, South Africa
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An Australian source for Pacific-Gondwanan zircons: Implications for the assembly of northeastern Gondwana
Erin L. Martin; William J. Collins; Christopher L. Kirkland
View articletitled, An Australian source for Pacific-Gondwanan zircons: Implications for the assembly of northeastern Gondwana
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Sub-decadal submarine landslides are important drivers of deltaic sediment flux: Insights from the Mississippi River Delta Front
Jeffrey Obelcz; Kehui Xu; Ioannis Y. Georgiou; Jillian Maloney; Samuel J. Bentley; Michael D. Miner
View articletitled, Sub-decadal submarine landslides are important drivers of deltaic sediment flux: Insights from the Mississippi River Delta Front
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Detecting eustatic and tectonic signals with carbon isotopes in deep-marine strata, Eocene Ainsa Basin, Spanish Pyrenees
Sébastien Castelltort; Louis Honegger; Thierry Adatte; Julian D. Clark; Cai Puigdefàbregas; Jorge E. Spangenberg; Mason L. Dykstra; Andrea Fildani
View articletitled, Detecting eustatic and tectonic signals with carbon isotopes in deep-marine strata, Eocene Ainsa Basin, Spanish Pyrenees
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Using network analysis to trace the evolution of biogeography through geologic time: A case study
Steffen Kiel
View articletitled, Using network analysis to trace the evolution of biogeography through geologic time: A case study
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Triggering of volcanic degassing by large earthquakes
Dulcinea M. Avouris; Simon A. Carn; Gregory P. Waite
View articletitled, Triggering of volcanic degassing by large earthquakes
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Tropical weathering of the Taconic orogeny as a driver for Ordovician cooling
Nicholas L. Swanson-Hysell; Francis A. Macdonald
View articletitled, Tropical weathering of the Taconic orogeny as a driver for Ordovician cooling
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Geological record of flat slab–induced extension in the southern Peruvian forearc
Mйlanie Noury; Mйlody Philippon; Matthias Bernet; Jean-Louis Paquette; Thierry Sempere
View articletitled, Geological record of flat slab–induced extension in the southern Peruvian forearc
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Fire biases the production of charred flowers: Implications for the Cretaceous fossil record
Victoria A. Hudspith; Claire M. Belcher
View articletitled, Fire biases the production of charred flowers: Implications for the Cretaceous fossil record
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Evolution of shear fabric in granular fault gouge from stable sliding to stick slip and implications for fault slip mode
M.M. Scuderi; C. Collettini; C. Viti; E. Tinti; C. Marone
View articletitled, Evolution of shear fabric in granular fault gouge from stable sliding to stick slip and implications for fault slip mode
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A three-sided orogen: A new tectonic model for Ancestral Rocky Mountain uplift and basin development
Ryan J. Leary; Paul Umhoefer; M. Elliot Smith; Nancy Riggs
View articletitled, A three-sided orogen: A new tectonic model for Ancestral Rocky Mountain uplift and basin development
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Cryptic metasomatism during late-stage lunar magmatism implicated by sulfur in apatite
Brian A. Konecke; Adrian Fiege; Adam C. Simon; Francois Holtz
View articletitled, Cryptic metasomatism during late-stage lunar magmatism implicated by sulfur in apatite
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Coupled oceanic oxygenation and metazoan diversification during the early–middle Cambrian?
Chao Li; Chengsheng Jin; Noah J. Planavsky; Thomas J. Algeo; Meng Cheng; Xinglian Yang; Yuanlong Zhao; Shucheng Xie
View articletitled, Coupled oceanic oxygenation and metazoan diversification during the early–middle Cambrian?
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Regional remagnetization of Irish Carboniferous carbonates dates Variscan orogenesis, not Zn-Pb mineralization
Jamie J. Wilkinson; Katie Vowles; Adrian R. Muxworthy; Conall Mac Niocaill
View articletitled, Regional remagnetization of Irish Carboniferous carbonates dates Variscan orogenesis, not Zn-Pb mineralization
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Late Triassic mollusk-dominated hydrocarbon-seep deposits from Turkey
Steffen Kiel; Leopold Krystyn; Ferdi Demirtaş; Erdal Koşun; Jörn Peckmann
View articletitled, Late Triassic mollusk-dominated hydrocarbon-seep deposits from Turkey
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In situ peridotitic diamond in Indus ophiolite sourced from hydrocarbon fluids in the mantle transition zone
S. Das; A.R. Basu; B.K. Mukherjee
View articletitled, In situ peridotitic diamond in Indus ophiolite sourced from hydrocarbon fluids in the mantle transition zone
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Outgassing and eruption of basaltic magmas: The effect of conduit geometry
L. Pioli; B.J. Azzopardi; C. Bonadonna; M. Brunet; A.K. Kurokawa
View articletitled, Outgassing and eruption of basaltic magmas: The effect of conduit geometry
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RESEARCH FOCUS

Silicate weathering, volcanic degassing, and the climate tug of war
Matthew R. Saltzman
View articletitled, Silicate weathering, volcanic degassing, and the climate tug of war
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What effects do earthquakes have on volcanoes?
Ben Kennedy
View articletitled, What effects do earthquakes have on volcanoes?
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Forum

Preservation or piracy: Diagnosing low-relief, high-elevation surface formation mechanisms: COMMENT
Sean Willett
View articletitled, Preservation or piracy: Diagnosing low-relief, high-elevation surface formation mechanisms: COMMENT
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Preservation or piracy: Diagnosing low-relief, high-elevation surface formation mechanisms: REPLY
Kelin X. Whipple; Roman A. DiBiase; William B. Ouimet; Adam M. Forte
View articletitled, Preservation or piracy: Diagnosing low-relief, high-elevation surface formation mechanisms: REPLY
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Gypsum gravel devils in Chile: Movement of largest natural grains by wind?: COMMENT
Ralph D. Lorenz
View articletitled, Gypsum gravel devils in Chile: Movement of largest natural grains by wind?: COMMENT
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Gypsum Gravel Devils in Chile: Movement of largest natural grains by wind?: REPLY
Kathleen C. Benison
View articletitled, Gypsum Gravel Devils in Chile: Movement of largest natural grains by wind?: REPLY
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  • Cover Image

    Cover Image

    issue cover

    COVER: A view of a section of the Nidar Ophiolite in the Indus Suture zone, Nidar Valley, Ladakh, India. The view is from the south-southwest, showing a yellowish dunite channel in foreground, crosscutting the mantle section, immediately overlain by the gabbro basalt ranges in the northnortheast. The distal ranges are the Indus molasse and the Ladakh batholith. The diamond-bearing peridotite occurs in the lower right part of the dunite channel. See “In situ peridotitic diamond in Indus Ophiolite sourced from hydrocarbon fluids in the mantle transition zone” by Das et al., p. 755.

    Photo by: Koushick Sen

    Cover design by: Heather L. Sutphin

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  • Online ISSN 1943-2682
  • ISSN 0091-7613
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