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Issues
Volume 46, Number 2
1 February 2018
ISSN 0091-7613
EISSN 1943-2682
In this Issue
Articles
Climate-soil model reveals causes of differences between Marine Isotope Stage 5e and 13 paleosols
Geology December 08, 2017, Vol.46, 99-102. doi:https://doi.org/10.1130/G39301.1
The role of asthenospheric flow during rift propagation and breakup
Geology December 08, 2017, Vol.46, 103-106. doi:https://doi.org/10.1130/G39674.1
Widespread preservation of small carbonaceous fossils (SCFs) in the early Cambrian of North Greenland
Geology December 08, 2017, Vol.46, 107-110. doi:https://doi.org/10.1130/G39788.1
How well do zircons record the thermal evolution of magmatic systems?
Geology December 08, 2017, Vol.46, 111-114. doi:https://doi.org/10.1130/G39690.1
High-angle, not low-angle, normal faults dominate early rift extension in the Corinth Rift, central Greece
Geology December 08, 2017, Vol.46, 115-118. doi:https://doi.org/10.1130/G39560.1
Determining the three-dimensional geometry of a dike swarm and its impact on later rift geometry using seismic reflection data
Geology December 08, 2017, Vol.46, 119-122. doi:https://doi.org/10.1130/G39672.1
An exsolution origin for Archean mantle garnet
Geology December 08, 2017, Vol.46, 123-126. doi:https://doi.org/10.1130/G39680.1
Changes in the latitudinal diversity gradient during the Great Ordovician Biodiversification Event
Geology December 08, 2017, Vol.46, 127-130. doi:https://doi.org/10.1130/G39587.1
Leaves in marine turbidites illuminate the depositional setting of the Pliocene Bowden shell beds, Jamaica
Emma R. Locatelli; Derek E.G. Briggs; Thomas A. Stemann; Roger W. Portell; Guy H. Means; Sherene A. James-Williamson; Stephen K. Donovan
Geology December 20, 2017, Vol.46, 131-134. doi:https://doi.org/10.1130/G39780.1
Precise age of Bangiomorpha pubescens dates the origin of eukaryotic photosynthesis
Timothy M. Gibson; Patrick M. Shih; Vivien M. Cumming; Woodward W. Fischer; Peter W. Crockford; Malcolm S.W. Hodgskiss; Sarah Wörndle; Robert A. Creaser; Robert H. Rainbird; Thomas M. Skulski; Galen P. Halverson
Geology December 08, 2017, Vol.46, 135-138. doi:https://doi.org/10.1130/G39829.1
Terrestrial methane fluxes and Proterozoic climate
Geology December 12, 2017, Vol.46, 139-142. doi:https://doi.org/10.1130/G39502.1
An ancient estuarine-circulation nutrient trap: The Late Pennsylvanian Midcontinent Sea of North America
Geology December 12, 2017, Vol.46, 143-146. doi:https://doi.org/10.1130/G39804.1
A new high-resolution chronology for the late Maastrichtian warming event: Establishing robust temporal links with the onset of Deccan volcanism
James S.K. Barnet; Kate Littler; Dick Kroon; Melanie J. Leng; Thomas Westerhold; Ursula Röhl; James C. Zachos
Geology December 12, 2017, Vol.46, 147-150. doi:https://doi.org/10.1130/G39771.1
Persistent millennial-scale glacier fluctuations in Ireland between 24 ka and 10 ka
Aaron M. Barth; Peter U. Clark; Jorie Clark; Gerard H. Roe; Shaun A. Marcott; A. Marshall McCabe; Marc W. Caffee; Feng He; Joshua K. Cuzzone; Paul Dunlop
Geology December 12, 2017, Vol.46, 151-154. doi:https://doi.org/10.1130/G39796.1
Opening of glacial Lake Agassiz’s eastern outlets by the start of the Younger Dryas cold period
David J. Leydet; Anders E. Carlson; James T. Teller; Andrew Breckenridge; Aaron M. Barth; David J. Ullman; Gaylen Sinclair; Glenn A. Milne; Joshua K. Cuzzone; Marc W. Caffee
Geology January 04, 2018, Vol.46, 155-158. doi:https://doi.org/10.1130/G39501.1
Decoupling of Zr-Hf during contact metamorphic anatexis of metabasalts and timing of zircon growth, Sudbury, Canada
Geology December 20, 2017, Vol.46, 159-162. doi:https://doi.org/10.1130/G39590.1
Generation of amorphous carbon and crystallographic texture during low-temperature subseismic slip in calcite fault gouge
Claudio Delle Piane; Sandra Piazolo; Nicholas E. Timms; Vladimir Luzin; Martin Saunders; Julien Bourdet; Ausama Giwelli; M. Ben Clennell; Charlie Kong; William D.A. Rickard; Michael Verrall
Geology December 20, 2017, Vol.46, 163-166. doi:https://doi.org/10.1130/G39584.1
Thermochronology links denudation of the Great Unconformity surface to the supercontinent cycle and snowball Earth
Geology December 20, 2017, Vol.46, 167-170. doi:https://doi.org/10.1130/G39525.1
Discovery of a meteoritic ejecta layer containing unmelted impactor fragments at the base of Paleocene lavas, Isle of Skye, Scotland
Simon M. Drake; Andrew D. Beard; Adrian P. Jones; David J. Brown; A. Dominic Fortes; Ian L. Millar; Andrew Carter; Jergus Baca; Hilary Downes
Geology December 12, 2017, Vol.46, 171-174. doi:https://doi.org/10.1130/G39452.1
80 m.y. of folding migration: New perspective on the Syrian arc from Levant Basin analysis
Geology December 20, 2017, Vol.46, 175-178. doi:https://doi.org/10.1130/G39654.1
Linking paleocontinents through triple oxygen isotope anomalies
Peter W. Crockford; Malcolm S.W. Hodgskiss; Gabriel J. Uhlein; Fabricio Caxito; Justin A. Hayles; Galen P. Halverson
Geology December 12, 2017, Vol.46, 179-182. doi:https://doi.org/10.1130/G39470.1
Channel slope adjustment in reduced gravity environments and implications for Martian channels
Geology December 20, 2018, Vol.46, 183-186. doi:https://doi.org/10.1130/G39666.1
Subtropical sea-surface warming and increased salinity during Eocene Thermal Maximum 2
Dustin T. Harper; Richard Zeebe; Bärbel Hönisch; Cindy D. Schrader; Lucas J. Lourens; James C. Zachos
Geology December 20, 2017, Vol.46, 187-190. doi:https://doi.org/10.1130/G39658.1
RESEARCH FOCUS
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Cover Image
Cover Image
COVER: A hydrothermal vent boils at 325 °C in the Niua South volcano, in the Tonga volcanic arc, South Pacific Ocean. In addition to the metal sulfides typically comprising the “black smoke,” this system also contains gold colloids that form upon boiling. See “Boiling-induced formation of colloidal gold in black smoker hydrothermal fluids” by Gartman et al., p. 39–42 in the January 2018 issue of Geology.
Photo by: Virtual Vents science party using ROV ROPOS, operated by Canadian Scientific Submersible Facility on board the R/V Falkor (Schmidt Ocean Institute).
Cover design by: Heather L. Sutphin
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