Issues

Articles
In Memory of Bennie Troxel
The rise and fall of stromatolites in shallow marine environments
The fate of sediment, wood, and organic carbon eroded during an extreme flood, Colorado Front Range, USA
Glendonites track methane seepage in Mesozoic polar seas
A common origin of carbonatite magmas
Modification of river meandering by tropical deforestation
Cascadia subduction tremor muted by crustal faults
Mantle melt production during the 1.4 Ga Laurentian magmatic event: Isotopic constraints from Colorado Plateau mantle xenoliths
Modelling satellite-derived magma discharge to explain caldera collapse
Timing of initial seafloor spreading in the Newfoundland-Iberia rift
Paleozoic echinoderm hangovers: Waking up in the Triassic
Microfossil measures of rapid sea-level rise: Timing of response of two microfossil groups to a sudden tidal-flooding experiment in Cascadia
Subtropical climate conditions and mangrove growth in Arctic Siberia during the early Eocene
New age constraints on Aptian evaporites and carbonates from the South Atlantic: Implications for Oceanic Anoxic Event 1a
Recent retreat of Columbia Glacier, Alaska: Millennial context
Paleofluvial and subglacial channel networks beneath Humboldt Glacier, Greenland
Defining the mechanism for compaction of the CV chondrite parent body
Recycling of metal-fertilized lower continental crust: Origin of non-arc Au-rich porphyry deposits at cratonic edges
Rock magnetic chronostratigraphy of the Shuram carbon isotope excursion: Wonoka Formation, Australia
Evidence for hydrothermal alteration and source regions for the Kiruna iron oxide–apatite ore (northern Sweden) from zircon Hf and O isotopes
Research Focus
Forum
The origin of contractional structures in extensional gneiss domes: COMMENT
The origin of contractional structures in extensional gneiss domes: REPLY
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Cover Image
Cover Image
COVER: Scientists from Harvard University and Lamont Doherty Earth Observatory/Columbia University wait to retrieve a marine sediment core on the deck of the R/V Atlantis in the northeast Pacific Ocean near the Juan de Fuca mid-ocean ridge. The corer had previously descended to a depth of over 2000 m, collecting a cylindrical core of seafloor sediment. Due to the proximity to the volcanically active ridge, these sediments contain small particles of volcanic glass, dispersed and deposited during ocean floor eruptions. Glasses sampled from successive layers of the sediment provide an unusually detailed record of magmatic activity at the ridge over many tens of thousands of years. See “A 65 k.y. time series from sediment-hosted glasses reveals rapid transitions in ocean ridge magmas” by Ferguson et al., p. 491–494.
Photo by: David Ferguson
Cover design by: Heather L. Sutphin
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