Howell Bosbyshell

Planes and topography part of Structural Geology and Tectonics:Structure, Geophysics, and Tectonics 2012:Activities
This is an exercise in projecting planar contacts onto a topographic map. The students create a geologic map, cross section and topographic profile, and write a brief interpretation.

Reviewing stress orientations in Andersonian faulting and stereo projection part of Structural Geology and Tectonics:Structure, Geophysics, and Tectonics 2012:Activities
This activity is a PowerPoint presentation to be used with a personal response system. It begins with a review stereonets and progresses to predicting the type of fault, and the orientation of potential faults and ...

Structural geology part of Structural Geology and Tectonics:Structure, Geophysics, and Tectonics 2012:Courses
Determination of the sequential development and the forces involved in the various structural features of the earth.

Acadian-age Inverted Metamorphism Below the Embreeville Thrust in the Central Appalachian Piedmont of Pennsylvania part of Cutting Edge:Courses:Structural Geology and Tectonics:2022 Structure and Tectonics Forum:Abstracts
This academic abstract page presents geological research on Acadian-age inverted metamorphism beneath the Embreeville Thrust in Pennsylvania’s Central Appalachian Piedmont, detailing petrological, geochemical, and geochronological evidence—particularly monazite U-Th-Pb ages and garnet zoning—from the Doe Run and Peters Creek Schists to support a prograde metamorphic gradient driven by thrust emplacement during the Acadian orogeny.

Formation of Plagioclase-Al2SiO5 Coronas on Quartz Inclusions in Garnet During Transtensional Exhumation of High-pressure High-temperature Metamorphic Rock part of Structural Geology and Tectonics:2016 Structure and Tectonics Forum:Abstracts
Academic abstract page detailing microstructural analysis of plagioclase-Al2SiO5 coronas in garnet-hosted quartz inclusions from high-pressure metamorphic rocks, focusing on isothermal decompression during transtensional exhumation in the Sycamore Mills Formation, with implications for tectonic evolution and metamorphic petrology.

Siluro-Devonian Assembly of the High-grade Core of the Central Appalachian Piedmont part of Structural Geology and Tectonics:2014 Structure and Tectonics Forum Abstracts
Howell Bosbyshell, West Chester University of Pennsylvania Gale Blackmer, Pennsylvania Geological Survey LeeAnn Srogi, West Chester University of Pennsylvania Sandy Schenck, Delaware Geological Survey Amphibolite ...