Southern Cianjur experiences numerous landslides. This study determines that stratigraphic and geologic structures control their occurrences. Sequences of rocks that have contrasting physical characteristics—such as the Lower Part of the Bentang Formation (Tmbl), the Upper Part …
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High-latitude volcanic eruptions can significantly impact the climate system. Simulations were conducted with the Goddard Institute for Space Studies (GISS) modelE general circulation model of the Katmai (58°N) as well as one with 3x the optical depth of Katmai (3x Katmai), and …
New seismic results are presented to elucidate the crustal structure of the transitional region of the margin. A velocity model derived from wide-angle seismic data shows three major crustal zones. The continental crust consists of three layers with velocities of 5.5-6.9 km/s wi…
This dissertation comprises four separate parts that address the Mars Global Surveyor (MGS) Thermal Emission Spectrometer (TES) investigation objective of determining and mapping the composition and distribution of surface minerals and rocks on Mars from orbit. In Part 1, labora…
Volcanic deposits on the Moon offer an invaluable opportunity to study its interior and geologic evolution. Volcanic materials erupted onto the surface represent samples of the interior, whose properties provide information about magma source regions at depth, conditions encount…
Pleistocene-age terra rossa paleosols are situated on and are intercalated with eolianite and marine carbonate units across the Bermuda Islands. These clay-rich soils were originally thought to the derived from weathering of the volcanic seamount and/or from dissolution of the c…