GEOLOGY: Appalachian Twins

Geology of the Bedford Shale and Berea Sandstone in the Appalachian Basin.

_ _________________________________________ Introduction _______________________________________ Purpose of the study____________________________ Acknowledgments. ______________________________ Character and extent of the Berea sandstone.______ Method of investigation. ________________________ Well records ___________________________________ A description of some of the more common terms used b...

Elements of an orogen: regional trends in the geology of the appalachian-caledonian-hercynian-mauritanide orogen.

Marine Geology

To constrain the timing of rifting in the western, eastern, and northern parts of the Alboran Sea basin, seismic reflectors, corresponding to biostratigraphic boundaries and unconformities from the Miocene to Recent, are correlated using synthetic seismograms. Regions of adjacent coeval compression and extension are found in the Alboran Sea basin. Normal faulting continues in parts of the easte...

Environmental Geology and Planning

The Journal of Geology

As magmas rise toward the surface, they traverse regions of the mantle and crust with which they are not in equilibrium; to the extent that time and the intimacy of their physical contact permit, the melts and country rocks will interact chemically. We have modeled aspects of these chemical interactions in terms of ion-exchange processes similar to those operating in simple chromatographic colu...