Issues

QUATERNARY GEOLOGY/GEOMORPHOLOGY

Geochronology and stratigraphy of late Pleistocene lake cycles on the southern Bolivian Altiplano: Implications for causes of tropical climate change

Christa Placzek; Jay Quade; P. Jonathan Patchett

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GSA Bulletin May 2006, Vol.118, 515-532. doi:10.1130/B25770.1

COASTAL GEOLOGY

Migration of the Pee Dee River system inferred from ancestral paleochannels underlying the South Carolina Grand Strand and Long Bay inner shelf

Wayne E. Baldwin; Robert A. Morton; Thomas R. Putney; Michael P. Katuna; M. Scott Harris; Paul T. Gayes; Neal W. Driscoll; Jane F. Denny; William C. Schwab

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GSA Bulletin May 2006, Vol.118, 533-549. doi:10.1130/B25856.1

SEDIMENTARY GEOLOGY - CARBONATES

Transgressive oversized radial ooid facies in the Late Jurassic Adriatic Platform interior: Low-energy precipitates from highly supersaturated hypersaline waters

Antun Husinec; J. Fred Read

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GSA Bulletin May 2006, Vol.118, 550-556. doi:10.1130/B25864.1

PLANETARY GEOLOGY

Quantitative geomorphology of the Mars Eberswalde delta

Lesli J. Wood

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GSA Bulletin May 2006, Vol.118, 557-566. doi:10.1130/B25822.1

MARINE GEOLOGY

Quantification of the effects of eustasy, subsidence, and sediment supply on Miocene sequences, mid-Atlantic margin of the United States

James V. Browning; Kenneth G. Miller; Peter P. McLaughlin; Michelle A. Kominz; Peter J. Sugarman; Donald Monteverde; Mark D. Feigenson; John C. Hernández

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GSA Bulletin May 2006, Vol.118, 567-588. doi:10.1130/B25551.1

Morphologies of knickpoints in submarine canyons

Neil C. Mitchell

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GSA Bulletin May 2006, Vol.118, 589-605. doi:10.1130/B25772.1

Morphology and sedimentary processes on the continental slope off Pine Island Bay, Amundsen Sea, West Antarctica

J.A. Dowdeswell; J. Evans; C. Ó Cofaigh; J.B. Anderson

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GSA Bulletin May 2006, Vol.118, 606-619. doi:10.1130/B25791.1

VOLCANOLOGY

The transition from explosive to effusive eruptive regime: The example of the 1912 Novarupta eruption, Alaska

Nancy K. Adams; Bruce F. Houghton; Sarah A. Fagents; Wes Hildreth

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GSA Bulletin May 2006, Vol.118, 620-634. doi:10.1130/B25768.1

TECTONICS

Dome formation and extension in the Tethyan Himalaya, Leo Pargil, northwest India

Rasmus C. Thiede; J. Ramón Arrowsmith; Bodo Bookhagen; Michael McWilliams; Edward R. Sobel; Manfred R. Strecker

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GSA Bulletin May 2006, Vol.118, 635-650. doi:10.1130/B25872.1

Cenozoic exhumation and deformation of northeastern Tibet and the Qinling: Is Tibetan lower crustal flow diverging around the Sichuan Basin?

Eva Enkelmann; Lothar Ratschbacher; Raymond Jonckheere; Ralf Nestler; Manja Fleischer; Richard Gloaguen; Bradley R. Hacker; Yue Qiao Zhang; Yin-Sheng Ma

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GSA Bulletin May 2006, Vol.118, 651-671. doi:10.1130/B25805.1

Miocene to present activity along the Red River fault, China, in the context of continental extrusion, upper-crustal rotation, and lower-crustal flow

Lindsay M. Schoenbohm; B. Clark Burchfiel; Chen Liangzhong; Yin Jiyun

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GSA Bulletin May 2006, Vol.118, 672-688. doi:10.1130/B25816.1

Late-stage evolution of the Chemehuevi and Sacramento detachment faults from apatite (U-Th)/He thermochronometry—Evidence for mid-Miocene accelerated slip

Timothy J. Carter; Barry P. Kohn; David A. Foster; Andrew J.W. Gleadow; Jon D. Woodhead

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GSA Bulletin May 2006, Vol.118, 689-709. doi:10.1130/B25736.1

Plate-scale stress fields driving the tectonic evolution of the central Ouachita salient, Oklahoma and Arkansas

Amy E. Whitaker; Terry Engelder

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GSA Bulletin May 2006, Vol.118, 710-723. doi:10.1130/B25780.1

STRATIGRAPHY

Regional-scale assessment of a sequence-bounding paleosol on fluvial fans using ground-penetrating radar, eastern San Joaquin Valley, California

George L. Bennett, V; Gary S. Weissmann; Gregory S. Baker; David W. Hyndman

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GSA Bulletin May 2006, Vol.118, 724-732. doi:10.1130/B25774.1

A Permian–Triassic boundary section at Quinn River Crossing, northwestern Nevada, and implications for the cause of the Early Triassic chert gap on the western Pangean margin

Erik A. Sperling; James C. Ingle, Jr.

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GSA Bulletin May 2006, Vol.118, 733-746. doi:10.1130/B25803.1

Permian-Triassic boundary in the central Transantarctic Mountains, Antarctica

James W. Collinson; William R. Hammer; Rosemary A. Askin; David H. Elliot

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GSA Bulletin May 2006, Vol.118, 747-763. doi:10.1130/B25739.1

DISCUSSION AND REPLY

Geologic evolution of the Xolapa Complex, southern Mexico: Evidence from U-Pb zircon geochronology: Discussion

L.A. Solari; P. Schaaf

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GSA Bulletin May 2006, Vol.118, 764-765. doi:10.1130/B25799.1

Geologic evolution of the Xolapa Complex, southern Mexico: Evidence from U-Pb zircon geochronology: Reply

Mihai N. Ducea; George E. Gehrels; Sarah Shoemaker; Joaquin Ruiz; Victor A. Valencia

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GSA Bulletin May 2006, Vol.118, 766-767. doi:10.1130/B25975.1