Volume 130, Number 5-6
1 May 2018
ISSN 0016-7606
EISSN 1943-2674
In this Issue
ARTICLES
Evidence of tectonism based on differential uplift of the Falmouth Formation of Jamaica
GSA Bulletin October 19, 2017, Vol.130, 707-720. doi:10.1130/B31796.1
Evolution of fluvial meander-belt deposits and implications for the completeness of the stratigraphic record
GSA Bulletin December 20, 2017, Vol.130, 721-739. doi:10.1130/B31699.1
Refined model of incremental emplacement based on structural evidence from the granodioritic Newry igneous complex, Northern Ireland
GSA Bulletin November 22, 2017, Vol.130, 740-756. doi:10.1130/B31756.1
Varve formation during the past three centuries in three large proglacial lakes in south-central Alaska
GSA Bulletin November 22, 2017, Vol.130, 757-774. doi:10.1130/B31792.1
Norian vegetation history and related environmental changes: New data from the Chinle Formation, Petrified Forest National Park (Arizona, SW USA)
GSA Bulletin October 19, 2017, Vol.130, 775-795. doi:10.1130/B31673.1
Early Tertiary extensional magmatism in southern Mexico and its relationship to exhumation of the Xolapa complex and detachment of the Chortis block
GSA Bulletin November 16, 2017, Vol.130, 796-810. doi:10.1130/B31698.1
Petrogenesis of mafic and felsic rocks from the Comei large igneous province, South Tibet: Implications for the initial activity of the Kerguelen plume
GSA Bulletin December 13, 2017, Vol.130, 811-824. doi:10.1130/B31653.1
Provenance, U-Pb detrital zircon geochronology, Hf isotopic analyses, and Cr-spinel geochemistry of the northeast Yukon-Koyukuk Basin: Implications for interior basin development and sedimentation in Alaska
GSA Bulletin December 19, 2017, Vol.130, 825-847. doi:10.1130/B31825.1
A new stratigraphic framework built on U-Pb single-zircon TIMS ages and implications for the timing of the penultimate icehouse (Paraná Basin, Brazil)
GSA Bulletin January 04, 2018, Vol.130, 848-858. doi:10.1130/B31775.1
Relative sea-level cycles and organic matter accumulation in shales of the Middle and Upper Devonian Horn River Group, northeastern British Columbia, Canada: Insights into sediment flux, redox conditions, and bioproductivity
GSA Bulletin November 22, 2017, Vol.130, 859-880. doi:10.1130/B31851.1
Tectonic evolution of the Qilian Shan: An early Paleozoic orogen reactivated in the Cenozoic
GSA Bulletin December 05, 2017, Vol.130, 881-925. doi:10.1130/B31721.1
Structure of the (ultra)high-pressure Western Gneiss Region, Norway: Imbrication during Caledonian continental margin subduction
GSA Bulletin December 14, 2017, Vol.130, 926-940. doi:10.1130/B31764.1
Phytoplankton contributions to the trace-element composition of Precambrian banded iron formations
GSA Bulletin December 20, 2017, Vol.130, 941-951. doi:10.1130/B31648.1
Provenance of late Paleozoic strata in the Yili Basin: Implications for tectonic evolution of the South Tianshan orogenic belt
GSA Bulletin December 20, 2017, Vol.130, 952-974. doi:10.1130/B31588.1
Timing and thermal evolution of fold-and-thrust belt formation in the Ultima Esperanza District, 51°S Chile: Constraints from K-Ar dating and illite characterization
GSA Bulletin December 05, 2017, Vol.130, 975-998. doi:10.1130/B31766.1
Late Devonian postcollisional magmatism in the ultrahigh-pressure metamorphic belt, Xitieshan terrane, NW China
GSA Bulletin December 13, 2017, Vol.130, 999-1016. doi:10.1130/B31772.1
Soil production and transport on postorogenic desert hillslopes quantified with 10Be and 26Al
GSA Bulletin January 02, 2018, Vol.130, 1017-1040. doi:10.1130/B31767.1
Reappraisal of emplacement models for Himalayan external crystalline nappes: The Jajarkot klippe, western Nepal
GSA Bulletin December 14, 2017, Vol.130, 1041-1056. doi:10.1130/B31799.1
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Cover Image
Cover Image
Cover: Banded iron formations such as those being mined at Mount Tom Price, Western Australia, were deposited over large areas of the ancient seafloor billions of years ago. As sediments that salted directly out of primitive seawater, they captured a chemical record of the evolution of nutrients and biological activity in Earth’s early oceans. See “Phytoplankton contributions to the trace-element composition of Precambrian banded iron formations” by Konhauser et al., p. 941–951.
Photo by: Mark Barley
Cover design by: Eric Christensen
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