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ISSN 0016-7606
EISSN 1943-2674
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GSA Bulletin July 01, 2017, Vol.129, 771-787. doi:10.1130/B31600.1
GSA Bulletin July 01, 2017, Vol.129, 788-805. doi:10.1130/B31601.1
GSA Bulletin July 01, 2017, Vol.129, 806-819. doi:10.1130/B31569.1
GSA Bulletin July 01, 2017, Vol.129, 820-836. doi:10.1130/B31573.1
GSA Bulletin July 01, 2017, Vol.129, 837-854. doi:10.1130/B31373.1
GSA Bulletin July 01, 2017, Vol.129, 855-868. doi:10.1130/B31527.1
GSA Bulletin July 01, 2017, Vol.129, 869-885. doi:10.1130/B31586.1
GSA Bulletin July 01, 2017, Vol.129, 886-903. doi:10.1130/B31561.1
GSA Bulletin July 01, 2017, Vol.129, 904-919. doi:10.1130/B31528.1
GSA Bulletin July 01, 2017, Vol.129, 920-946. doi:10.1130/B31524.1
GSA Bulletin July 01, 2017, Vol.129, 947-969. doi:10.1130/B31607.1
GSA Bulletin July 01, 2017, Vol.129, 970-996. doi:10.1130/B31439.1
GSA Bulletin July 01, 2017, Vol.129, 997-1011. doi:10.1130/B31515.1
GSA Bulletin July 01, 2017, Vol.129, 1012-1015. doi:10.1130/B31640.1
GSA Bulletin July 01, 2017, Vol.129, 1016-1018. doi:10.1130/B31763.1
GSA Bulletin July 01, 2017, Vol.129, 1019-1021. doi:10.1130/B31806.1
GSA Bulletin July 01, 2017, Vol.129, 1022-1024. doi:10.1130/B31835.1
  • 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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