Issues
Volume 130, Number 9-10
1 September 2018
ISSN 0016-7606
EISSN 1943-2674
In this Issue
ARTICLES
A lithostratigraphic and magnetostratigraphic framework in a geochronologic context for a purported Permian–Triassic boundary section at Old (West) Lootsberg Pass, Karoo Basin, South Africa
GSA Bulletin April 03, 2018, Vol.130, 1411-1438. doi:10.1130/B31881.1
A 100-m.y.-long window onto mass-flow processes in the Patagonian Mesozoic subduction zone (Diego de Almagro Island, Chile)
GSA Bulletin March 29, 2018, Vol.130, 1439-1456. doi:10.1130/B31891.1
Postglacial evolution of a formerly glaciated valley: Reconstructing sediment supply, fan building, and confluence effects at the millennial time scale
GSA Bulletin March 22, 2018, Vol.130, 1457-1473. doi:10.1130/B31924.1
The Oltulelei Formation of the southern Kenyan Rift Valley: A chronicle of rapid landscape transformation over the last 500 k.y.
GSA Bulletin March 15, 2018, Vol.130, 1474-1492. doi:10.1130/B31853.1
Age of Jurassic basal sauropods in Sichuan, China: A reappraisal of basal sauropod evolution
GSA Bulletin April 03, 2018, Vol.130, 1493-1500. doi:10.1130/B31910.1
Two-sided accretion and polyphase metamorphism in the Haast Schist belt, New Zealand: Constraints from detrital zircon geochronology
GSA Bulletin March 28, 2018, Vol.130, 1501-1518. doi:10.1130/B31826.1
Microscopic anatomy of a “hot-on-cold” shear zone: Insights from quartzites of the Main Central Thrust in the Alaknanda region (Garhwal Himalaya)
GSA Bulletin April 03, 2018, Vol.130, 1519-1539. doi:10.1130/B31797.1
Integrated biostratigraphy and carbon isotope stratigraphy for the Upper Cretaceous Kanguk Formation of the High Arctic Sverdrup Basin, Canada
GSA Bulletin March 28, 2018, Vol.130, 1540-1561. doi:10.1130/B31858.1
Variable slab-mantle interaction in a nascent Neoproterozoic arc–back-arc system generating boninitic-tholeiitic lavas and magnesian andesites
GSA Bulletin March 08, 2018, Vol.130, 1562-1582. doi:10.1130/B31883.1
Gold remobilization associated with Mississippi Valley–type fluids: A Pb isotope perspective
GSA Bulletin March 30, 2018, Vol.130, 1583-1595. doi:10.1130/B31901.1
Pinnacle features at the base of isolated carbonate buildups marking point sources of fluid offshore Northwest Australia
GSA Bulletin April 04, 2018, Vol.130, 1596-1614. doi:10.1130/B31838.1
Calibration of chron C29r: New high-precision geochronologic and paleomagnetic constraints from the Hell Creek region, Montana
GSA Bulletin May 02, 2018, Vol.130, 1615-1644. doi:10.1130/B31890.1
Volcanic hazard scenarios for multiphase andesitic Plinian eruptions from lithostratigraphy: Insights into pyroclastic density current diversity at Mount Taranaki, New Zealand
GSA Bulletin April 30, 2018, Vol.130, 1645-1663. doi:10.1130/B31850.1
Unravelling Mount Etna’s early eruptive history by three-dimensional magnetic modeling
GSA Bulletin April 12, 2018, Vol.130, 1664-1674. doi:10.1130/B31793.1
Transition from extrusion to flow tectonism around the Eastern Himalaya syntaxis
GSA Bulletin April 26, 2018, Vol.130, 1675-1696. doi:10.1130/B31811.1
Assessing mantle versus crustal sources for non-volcanic degassing along fault zones in the actively extending southern Apennines mountain belt (Italy)
GSA Bulletin April 30, 2018, Vol.130, 1697-1722. doi:10.1130/B31869.1
Deep-water channel-lobe transition zone dynamics: Processes and depositional architecture, an example from the Karoo Basin, South Africa
GSA Bulletin May 07, 2018, Vol.130, 1723-1746. doi:10.1130/B31714.1
Late-stage slip history of the Buckskin-Rawhide detachment fault and temporal evolution of the Lincoln Ranch supradetachment basin: New constraints from the middle Miocene Sandtrap Conglomerate
GSA Bulletin May 08, 2018, Vol.130, 1747-1760. doi:10.1130/B31888.1
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Cover Image
Cover Image
Cover: The volcanic “land of fire” of the North Island of New Zealand. In the foreground, covered by winter's ice and snow, “Sharks Tooth,” a remnant of lava flows forming the summit crater of the andesitic stratovolcano Mount Taranaki stands high over the western Taranaki Peninsula, home of the nation's energy and large portion of the dairy industry. This >170 ka volcano produced 16 Plinian eruptions over the last 5000 years—the latest at A.D. 1655. A comparable future event would threaten >100,000 people's lives. In the background, 200 km east of Taranaki, Mount Ruapehu volcano forms part of New Zealand's north-to-south oriented and active Taupo Volcanic Zone. See “Volcanic hazard scenarios for multiphase andesitic Plinian eruptions from lithostratigraphy: Insights into pyroclastic density current diversity at Mount Taranaki, New Zealand” by Torres-Orozco et al., p. 1645–1663.
Photo by: Rafael Torres-Orozco
Cover design by: Eric Christensen
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