A casting technique has betn developed for ding translucent replicas of the void space of natural rock measurui by means of light attenuation. Digital h g e analysis yields a virtuatly pointwise definition of fracture am. The casting technique for muring fratfractures. Amnuation of light &n& through the cast combin& with digital image analysis a pointtWe Wid space geometry has evaluated by comp...

The Confidence Hills, Southern Death Valley, California, are composed of Plio-Pleistocene lacustrine beds, evaporite beds, ashes, playa sediments, alluvial fan and fluvial deposits. The sediments have been divided into 5 mappable units. From oldest to, youngest, they are: the Confidence Hills "formation" (informal) composed of three interfingering members, and overlying Units A and B which do n...

Abstract Geomorphological investigations in Rome’s river valley are revealing the dynamism of prehistoric landscape. It is becoming increasingly apparent that paleogeographic conditions defined Rome historical era product changes since Bronze Age, which may be result local fault activity addition to fluvial dynamism. Through a dedicated borehole chronostratigraphic study, integrated by 14 C and...

Abstract Two new joint gravity-magnetic models in northern Coachella Valley provide additional evidence for a steep northeast dip of the Mission Creek strand southern San Andreas fault (southern California, USA). Gravity modeling indicates Banning upper 1–2 km Valley. The and its continuation to southeast (Coachella segment) coincide with northeastern margin Cenozoic basin are marked by promine...

Abstract Deep Springs Valley (DSV) is a hydrologically isolated valley between the White and Inyo mountains that commonly excluded from regional paleohydrology paleoclimatology. Previous studies showed uplift of ridge (informal name) by fault defeated streams crossing DSV sometime after eruption Pleistocene Bishop Tuff (0.772 Ma). Here, we present tephrochronology clast counts reaffirms interru...

Abstract The Great Valley fault system defines the tectonic boundary between Coast Ranges and Central in California, is active throughout Quaternary, has been source of several significant (M > 6) historic earthquakes, including 1983 M 6.5 Coalinga earthquake 1892 Vacaville–Winters sequence. However, locations geometries individual faults are poorly constrained, slip rates paleoearthquak...