Download Hydrothermal Processes Above the Yellowstone Magma Chamber: by Lisa A. Morgan PDF

By Lisa A. Morgan

Show description

Read or Download Hydrothermal Processes Above the Yellowstone Magma Chamber: Large Hydrothermal Systems and Large Hydrothermal Explosions (Geological Society of America Special Paper) PDF

Similar geology books

Introducing Geology: A Guide to the World of Rocks

This introductory publication explains only what geology can let us know in regards to the international. Many items of serious good looks which excite our interest, equivalent to crystals or fossils, are to be stumbled on by means of reading rocks. these looking for and reading such gadgets achieve even more by way of understanding how and after they originated.

Coastal Evolution: Late Quaternary Shoreline Morphodynamics

This ebook assesses how coastlines switch and the way they've got developed over the last few thousand years. It introduces a number of the newest recommendations in coastal morphodynamics, spotting that coasts boost via co-adjustment of procedure and shape. The authors research certain types of coasts--deltas, estuaries, reefs, lagoons and polar coasts--in aspect with conceptual versions constructed at the foundation of well-studied examples.

The Southern Central Andes: Contributions to Structure and Evolution of an Active Continental Margin (Lecture Notes in Earth Sciences)

This quantity offers an summary of the geotectonic evolution of the critical Andes. The contributions hide the entire spectrum of geoscientific learn: geology, petrology, geochemistry, geophysics and geomorphology. They care for the interval from overdue Precambrium as much as the youngest phenomena within the Quaternary.

Extra info for Hydrothermal Processes Above the Yellowstone Magma Chamber: Large Hydrothermal Systems and Large Hydrothermal Explosions (Geological Society of America Special Paper)

Sample text

6 km from the Turbid Lake crater rim. Mary Bay Hydrothermal Explosion Crater The Mary Bay hydrothermal explosion crater has formed a large embayment in the northern basin of Yellowstone Lake (Fig. 8A). 8 km (Table 1) making it the largest documented feature of this type in the world (Browne and Lawless, 2001). The central part of the crater shows clearly in the bathymetric image of the lake floor in Mary Bay (Fig. 7). The Mary Bay hydrothermal explosion crater extends subaerially northeast from the northern basin of Yellowstone Lake, where steep (~30° slope), 30–40-m-high cliffs expose explosion breccia in the upper part of the crater wall northeast of Yellowstone Lake (Fig.

Flanks of the large hydrothermal explosion craters show no constructive rim of ejected material, unlike their subaerial equivalents, which probably results from explosion into a different medium. Flanks of the large craters are outward sloping and are mantled with younger lacustrine sediment. Hydrothermal breccia deposits exposed in wave-cut bluffs along the northern shore of Yellowstone Lake between Storm Point and Mary Bay provide evidence concerning the recent hydrothermal history of the northern lake area.

2003, 2007a; Morgan and Shanks, 2005). The northern rim of Elliot’s Crater rises ~40 m above the flat-bottomed main crater floor whereas the southern crater rim is ~30 m above the crater floor. The elevation of the northern crater rim relative to the southern rim (Fig. 12A) may reflect (1) location of the crater on the edge of a rhyolitic lava flow (Morgan and Shanks, 2005), (2) sediment accumulation due to near-shore depositional processes, and/or (3) doming associated with hydrothermal inflation, as documented by Johnson et al.

Download PDF sample

Rated 4.49 of 5 – based on 14 votes