Using field data to constrain a numerical kinematic model for ridge-transform deformation in the Troodos ophiolite, Cyprus
C.P. Scott et al., Carleton College, Geology, One North College St., Northfield, Minnesota 55057, USA. Posted online 14 Nov. 2012; http://dx.doi.org/10.1130/L237.1.
Geoscientists study the boundaries between tectonic plates to improve the understanding of geologic hazards and of Earth in general. Oceanic plate boundaries, such as the Mid-Atlantic Ridge, comprise spreading segments, where new material is created, and fault segments, where two plates slide past one another. The Troodos ophiolite in Cyprus is a special example, where an ancient slice of oceanic plate material, including a spreading segment and a fault, is accessible on land. This paper by Chelsea P. Scott and colleagues uses features of rocks in the Troodos ophiolite to characterize the patterns of rock deformation arising in this preserved oceanic plate boundary.
Pre- to syn-glacial rift-related volcanism in the Neoproterozoic (Cryogenian) Pocatello Formation, SE Idaho: New SHRIMP and CA-ID-TIMS constraints
J. Keeley et al., 619 N Arthur Ave, Pocatello, Idaho 83204, USA. Posted online 14 Nov. 2012; http://dx.doi.org/10.1130/L226.1.
This paper presents stratigraphic relationships and precise age constraints from the Pocatello Formation of southeast Idaho that bear on the 660- to 715-million-year-old Sturtian glacial phases within a Cryogenian snowball Earth. These U-Pb zircon ages constr
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Geological Society of America