Issues
Volume 132, Number 1-2
1 January 2020
ISSN 0016-7606
EISSN 1943-2674
In this Issue
ARTICLES
Competing sediment sources during Paleozoic closure of the Marathon-Ouachita remnant ocean basin
GSA Bulletin July 15, 2019, Vol.132, 3-16. doi:https://doi.org/10.1130/B35201.1
Deposition of >3.7 Ga clay-rich strata of the Mawrth Vallis Group, Mars, in lacustrine, alluvial, and aeolian environments
GSA Bulletin May 02, 2019, Vol.132, 17-30. doi:https://doi.org/10.1130/B35185.1
The local Last Glacial Maximum in McMurdo Sound, Antarctica: Implications for ice-sheet behavior in the Ross Sea Embayment
GSA Bulletin May 02, 2019, Vol.132, 31-47. doi:https://doi.org/10.1130/B35139.1
Multiproxy lacustrine records of post-glacial environmental change from the Uinta Mountains, Utah, USA
GSA Bulletin May 02, 2019, Vol.132, 48-64. doi:https://doi.org/10.1130/B35056.1
Provenance of detrital sediments in Santa Barbara Basin, California, USA: Changes in source contributions between the Last Glacial Maximum and Holocene
GSA Bulletin April 24, 2019, Vol.132, 65-84. doi:https://doi.org/10.1130/B32035.1
Large-scale mass wasting on the Miocene continental margin of western India
GSA Bulletin May 09, 2019, Vol.132, 85-112. doi:https://doi.org/10.1130/B35158.1
Guadalupian (Permian) onset of subduction zone volcanism and geodynamic turnover from passive- to active-margin tectonics in southeast China
GSA Bulletin May 14, 2019, Vol.132, 130-148. doi:https://doi.org/10.1130/B32014.1
Compressional origin of the Naxos metamorphic core complex, Greece: Structure, petrography, and thermobarometry
GSA Bulletin June 04, 2019, Vol.132, 149-197. doi:https://doi.org/10.1130/B31978.1
Accelerating exhumation in the Eocene North American Cordilleran hinterland: Implications from detrital zircon (U-Th)/(He-Pb) double dating
GSA Bulletin May 16, 2019, Vol.132, 198-214. doi:https://doi.org/10.1130/B35160.1
Deposition and age of Chicxulub impact spherules on Gorgonilla Island, Colombia
GSA Bulletin June 17, 2019, Vol.132, 215-232. doi:https://doi.org/10.1130/B35287.1
An improved approach to age-modeling in deep time: Implications for the Santa Cruz Formation, Argentina
GSA Bulletin May 23, 2019, Vol.132, 233-244. doi:https://doi.org/10.1130/B35203.1
Effect of channel tributaries on the evolution of submarine channel confluences (Espírito Santo Basin, SE Brazil)
GSA Bulletin June 10, 2019, Vol.132, 263-272. doi:https://doi.org/10.1130/B35082.1
Laurentian origin of the Cuyania suspect terrane, western Argentina, confirmed by Hf isotopes in zircon
GSA Bulletin June 12, 2019, Vol.132, 273-290. doi:https://doi.org/10.1130/B35150.1
Late Mesozoic intraplate rhyolitic volcanism in the North China Craton: Far-field effect of the westward subduction of the Paleo-Pacific Plate
GSA Bulletin May 23, 2019, Vol.132, 291-309. doi:https://doi.org/10.1130/B35123.1
Magnetic polarity stratigraphy, provenance, and paleoclimate analysis of Cenozoic strata in the Qaidam Basin, NE Tibetan Plateau
GSA Bulletin June 12, 2019, Vol.132, 310-320. doi:https://doi.org/10.1130/B35175.1
CO2-induced climate forcing on the fire record during the initiation of Cretaceous oceanic anoxic event 2
GSA Bulletin June 13, 2019, Vol.132, 321-333. doi:https://doi.org/10.1130/B35097.1
Late Cretaceous magmatism in the NW Lhasa Terrane, southern Tibet: Implications for crustal thickening and initial surface uplift
GSA Bulletin May 02, 2019, Vol.132, 334-352. doi:https://doi.org/10.1130/B31915.1
Sequence stratigraphy and depositional history of the Baranof Fan: Insights for Cordilleran Ice Sheet outflow to the Gulf of Alaska
GSA Bulletin May 21, 2019, Vol.132, 353-372. doi:https://doi.org/10.1130/B35164.1
Accuracy and precision of the late Eocene–early Oligocene geomagnetic polarity time scale
GSA Bulletin June 13, 2019, Vol.132, 373-388. doi:https://doi.org/10.1130/B35184.1
Field-based investigation of fault architecture: A case study from the Lenghu fold-and-thrust belt, Qaidam Basin, NE Tibetan Plateau
GSA Bulletin June 19, 2019, Vol.132, 389-408. doi:https://doi.org/10.1130/B35140.1
Siberian Trap volcanism, global warming and the Permian-Triassic mass extinction: New insights from Armenian Permian-Triassic sections
GSA Bulletin June 17, 2019, Vol.132, 427-443. doi:https://doi.org/10.1130/B35108.1
Cambrian geology of the Salt Range of Pakistan: Linking the Himalayan margin to the Indian craton: Comment
GSA Bulletin August 28, 2019, Vol.132, 444-445. doi:https://doi.org/10.1130/B35329.1
Cambrian geology of the Salt Range of Pakistan: Linking the Himalayan margin to the Indian craton: Reply
GSA Bulletin August 28, 2019, Vol.132, 446-448. doi:https://doi.org/10.1130/B35365.1
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Cover Image
Cover Image
Cover: Black Island, comprised of a series of trachytic lava domes and basaltic pyroclastic cones, rises 800 m in southern McMurdo Sound, Antarctica and poses a topographic obstacle to strong southerly winds. Adiabatic winds blowing up and over the island create a local ablation zone that sculpts spectacular ice pinnacles and melt pools in the McMurdo Ice Shelf in the lee of the island. During past glaciations when marine ice sheets inundated the western Ross Sea, Black Island often stood out as a nunatak where the same adiabatic wind patterns operated. This caused enhanced ablation of the ice sheet, leading to the accumulation of basal debris rich in erratic lithologies transported from the Transantarctic Mountains. See “The local Last Glacial Maximum in McMurdo Sound, Antarctica: Implications for ice-sheet behavior in the Ross Sea Embayment” by Christ and Bierman, p. 31–47.
Photo by: Andrew Christ
Cover design by: Eric Christensen
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