1.The scientific study of the origin, history, and structure of the earth. 2.The structure of a specific region of the earth's crust. 3.A book on geology. 4.The scientific study of the origin, history, and structure of the solid matter of a celestial body. ...
Learn what the geologic time scale is. Identify eons, eras, periods, and epochs on the time scale, and study the history and development of the...
Evidence of erosion and downcutting is also preserved by clinker clasts in gravel terraces. One clinker boulder in a terrace 360 m above the Yellowstone River has a fission track age of 4.0卤0.7 Ma. Coal-bed fires are caused by lightning, wildfires, spontaneous combustion, or human activity ...
The Earth has remained magmatically and volcanically active over its full geologic history despite continued planetary cooling and a lack of thermal equilibrium in the mantle. Here we investigate this conundrum using data-constrained numerical models of deep-water cycling and thermal history. We find...
I don’t know the history of this place, but it must have been 1950s swanky in its heyday!… There was also a mountain lion living under the hotel. It startled me. The road forks, and I head West along Elko County Road 746 (the Charleston-Mountain City Road). It’s like any ...
The two largest features on this simplified geologic map are the great Idaho batholith (dark pink), a huge emplacement of plutonic rock of Mesozoic age, and the swath of lava beds along the west and across the south that marks the path of the Yellowstone hotspot. The hotspot first arose...
High-resolution aeromagnetic data acquired over Yellowstone National Park (YNP) show contrasting patterns reflecting differences in rock composition, types... FLA Morgan - 《Journal of Volcanology & Geothermal Research》 被引量: 86发表: 2002年 The geological evolution of Merapi volcano, Central Java,...
This relationship may best be explained by the complex glacial history which has strongly affected the northern Yellowstone region, and the resistant nature of the Precambrian crystalline rocks exposed in the footwall of the fault. Geomorphic and statistical analysis of Quaternary fault scarps revealed ...
As a result, numerous dissertations, articles, and books have been devoted to the history of these forms, and their authors have made a variety of arguments as to how such publication venues influenced the meanings readers made of the texts printed therein. Few realize, though, that despite ...