Issues
Volume 129, Number 7-8
1 July 2017
ISSN 0016-7606
EISSN 1943-2674
PALEOCLIMATOLOGY
Lower Cretaceous cold snaps led to widespread glendonite occurrences in the Sverdrup Basin, Canadian High Arctic
GSA Bulletin July 2017, Vol.129, 771-787. doi:10.1130/B31600.1
Extensive Early Cretaceous (Albian) methane seepage on Ellef Ringnes Island, Canadian High Arctic
GSA Bulletin July 2017, Vol.129, 788-805. doi:10.1130/B31601.1
LIMNOGEOLOGY
A 40,000 yr record of clay mineralogy at Lake Towuti, Indonesia: Paleoclimate reconstruction from reflectance spectroscopy and perspectives on paleolakes on Mars
GSA Bulletin July 2017, Vol.129, 806-819. doi:10.1130/B31569.1
QUATERNARY GEOLOGY/GEOMORPHOLOGY
Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India
GSA Bulletin July 2017, Vol.129, 820-836. doi:10.1130/B31573.1
Along-strike variation in catchment morphology and cosmogenic denudation rates reveal the pattern and history of footwall uplift, Main Gulf Escarpment, Baja California
GSA Bulletin July 2017, Vol.129, 837-854. doi:10.1130/B31373.1
TECTONICS
Path and amount of dextral fault slip in the Eastern California shear zone across the central Mojave Desert
GSA Bulletin July 2017, Vol.129, 855-868. doi:10.1130/B31527.1
Petrology
Miocene orbicular diorite in east-central Himalaya: Anatexis, melt mixing, and fractional crystallization of the Greater Himalayan Sequence
GSA Bulletin July 2017, Vol.129, 869-885. doi:10.1130/B31586.1
STRATIGRAPHY
New age constraints for early Paleogene strata of central Patagonia, Argentina: Implications for the timing of South American Land Mammal Ages
GSA Bulletin July 2017, Vol.129, 886-903. doi:10.1130/B31561.1
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
GSA Bulletin July 2017, Vol.129, 904-919. doi:10.1130/B31528.1
ECONOMIC GEOLOGY
Geology of the Don Manuel igneous complex, central Chile: Implications for igneous processes in porphyry copper systems
GSA Bulletin July 2017, Vol.129, 920-946. doi:10.1130/B31524.1
GEOCHRONOLOGY
Mesozoic felsic volcanic rocks from the North China craton: Intraplate magmatism associated with craton destruction
GSA Bulletin July 2017, Vol.129, 947-969. doi:10.1130/B31607.1
STRUCTURAL GEOLOGY
Stratigraphy and structure of the Eocene Memphis Sand above the eastern margin of the Reelfoot rift in Tennessee, Mississippi, and Arkansas, USA
GSA Bulletin July 2017, Vol.129, 970-996. doi:10.1130/B31439.1
PALEOCLIMATOLOGY
Clay mineralogical constraints on weathering in response to early Eocene hyperthermal events in the Bighorn Basin, Wyoming (Western Interior, USA)
GSA Bulletin July 2017, Vol.129, 997-1011. doi:10.1130/B31515.1
COMMENT AND REPLY
Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Comment
GSA Bulletin July 2017, Vol.129, 1012-1015. doi:10.1130/B31640.1
Integrated stratigraphic, geochemical, and paleontological late Ediacaran to early Cambrian records from southwestern Mongolia: Reply
GSA Bulletin July 2017, Vol.129, 1016-1018. doi:10.1130/B31763.1
Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: COMMENT
GSA Bulletin July 2017, Vol.129, 1019-1021. doi:10.1130/B31806.1
Depositional history, tectonics, and provenance of the Cambrian-Ordovician boundary interval in the western margin of the North China block: Reply
GSA Bulletin July 2017, Vol.129, 1022-1024. doi:10.1130/B31835.1
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Cover Image
Cover Image
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
- Table of Contents