WebCrossbedding in sedimentary rocks is indicative of deposition by wind or water currents. Thick crossbedding and frosted sand grains indicate... See full answer below. Become a … Webmaterial exhibits cross-bedding, indicative of the presence of water on the site that has either reworked the original ash or that the ash was deposited in water and then reworked. Tuff varies greatly in texture from one hand specimen to another. Some specimens consist of grains and fragments that average less than 1 mm (.04 inch). Such
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WebVerified answer. physics. (a) Calculate the frequency of revolution and the orbit radius of the electron in the Bohr model of hydrogen for n = 100, 1000, and 10,000. (b) Calculate the photon frequency for transitions from the n to n - 1 states for the same values of n as in part (a) and compare with the revolution frequencies found in part (a). In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary structures which result are roughly horizontal units composed of inclined layers. The original depositional layering is tilted, such tilting not being the result of … See more Cross-beds can tell geologists much about what an area was like in ancient times. The direction the beds are dipping indicates paleocurrent, the rough direction of sediment transport. The type and condition of sediments can … See more • Cross-bedding animation from USGS • The Bibliography of Aeolian Research See more Cross-bedding is formed by the downstream migration of bedforms such as ripples or dunes in a flowing fluid. The fluid flow causes sand grains to saltate up the stoss … See more Rivers Flows are characterized by climate (snows, rain, and ice melting) and gradient. Discharge variations measured on a variety of time scales can change water depth, and speed. Some rivers can be characterized by … See more the standard c library - p j. plaucer
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WebA. A delta is a region characterized by an arid climate, little vegetation, and a lack of water bodies. B. A delta is a triangular landform created where a stream enters a body of water and deposits sediment. C. A delta is a large body of water surrounded by land. D. A delta is a strip of land along a shoreline that is dominantly made up of sand. WebThe crossbedding at the bottom of this image indicate the the wind direction went _____. right to left. A very basic conclusion a geologist can draw from finding ancient mud cracks is that the depositional environment they formed in … WebCross bedding – In places where ripples or dunes pile on top of one another, where one cross bed interrupts and/or cuts another below, this shows a cross-cutting relationship that indicates up direction. Ripples, … mystery\\u0027s ac