Lithosphere

Lithosphere

The December 2010 Lithosphere analyzes tectonic histories across the Llano Uplift, Texas; activity along the ~85-mile-long Kern Canyon fault, southern Sierra Nevada; deformed mantle materials in the Twin Sisters ultramafic body of Washington State; a giant granitic intrusion called the Sahwave Intrusive Suite near Reno, Nevada the Socorro Magma Body, New Mexicogravity anomalies on and offshore of the Antarctic continent; and the shallow upper mantle stratification of the “Lehmann” and “X” discontinuities. Highlights are provided below. View abstracts for the complete issue of LITHOSPHERE at http://lithosphere.gsapubs.org/current.dtl.

Field-based constraints on finite strain and rheology of the lithospheric mantle, Twin Sisters, Washington

Basil Tikoff of the University of Wisconsin-Madison and colleagues present direct finite strain and rheological estimates of naturally deformed mantle materials using field observations in the Twin Sisters ultramafic body of Washington State.

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