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Alluvium (redirect from Alluvial deposit)loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar...7 KB (650 words) - 12:12, 11 April 2024
fan deposits likely contain the largest accumulations of gravel in the geologic record. Alluvial fans have also been found on Mars and Titan, showing that...40 KB (5,068 words) - 21:28, 11 May 2024
outcrops. Gravel is deposited as gravel blankets or bars in stream channels; in alluvial fans; in near-shore marine settings, where the gravel is supplied...18 KB (2,167 words) - 11:00, 19 June 2024
Placer mining (redirect from Alluvial gold)gold) and gemstones, both of which are often found in alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial...22 KB (2,747 words) - 22:54, 24 June 2024
Conglomerate (geology) (section Alluvial)conglomerates that originated as debris flows on alluvial fans and likely contain the largest accumulations of gravel in the geologic record. Conglomerates may...16 KB (1,817 words) - 06:18, 7 March 2024
of some utility in prospecting for gold nuggets and for diamonds in alluvial gravel beds, by finding natural traps in buried stream beds that have the...33 KB (4,630 words) - 00:14, 4 June 2024
floor of the Wairau River, around the town of Blenheim, with deep alluvial gravel soils and river terraces. The Southern Valleys are the north-south...13 KB (1,202 words) - 08:23, 19 February 2024
the United States. In the U.S., Montana moss agate is found in the alluvial gravels of the Yellowstone River and its tributaries between Sidney and Billings...3 KB (288 words) - 20:22, 24 January 2024
recharged and through which aquifer discharge occurs. Many aquifers, such as alluvial aquifers, occur entirely within regolith. The composition of the regolith...18 KB (2,130 words) - 03:35, 26 May 2024
dominant.: 115 It exists at the base of flat valleys having deep alluvial gravel, where water from the hills hit the flat valley floor having an intermittent...4 KB (521 words) - 21:16, 14 June 2024
Placer deposit (section Alluvial placers)overburden from the top of the rich, diamond-gravel layer. Roughly 10 percent of diamonds are mined from alluvial diamond placer mines. The Witwatersrand Basin...11 KB (1,176 words) - 16:29, 27 April 2024
a safer approach and landing ground for aircraft. The subsoil of alluvial gravel was acceptable for an airstrip and the south-eastern orientation of...22 KB (2,624 words) - 13:59, 12 June 2024
An alluvial river is one in which the bed and banks are made up of mobile sediment and/or soil. Alluvial rivers are self-formed, meaning that their channels...18 KB (2,245 words) - 12:35, 13 February 2023
install a manned station at Advent Bay (Adventfjorden); its subsoil of alluvial gravel was acceptable for a landing ground. The site received the code-name...16 KB (2,183 words) - 08:06, 18 April 2024
for its broad valley, a safer approach for aircraft; its subsoil of alluvial gravel was acceptable for a landing ground. The south-eastern orientation...50 KB (7,298 words) - 11:04, 29 February 2024- have been made in the reprocessing of alluvial gravels at Bendigo, including the Hopgood brothers in 1985 and Alluvial Processing Ltd in 1986.[citation needed]...40 KB (4,684 words) - 05:29, 12 April 2024
late Pleistocene approximately 3 million to 10,000 years ago. The alluvial gravels were then reworked as shingle fans of several of the larger rivers...4 KB (420 words) - 06:54, 13 April 2024
Hawke's Bay wine region (redirect from Gimblett Gravels)after an earthquake in the 1860s. The soils include free draining alluvial gravels and shallow clay-loam soils over Lake Taupō pumice tephras. Vineyards...16 KB (1,083 words) - 12:11, 30 November 2023
interspersed with flint and narrow alluvial gravel beds in the south. London clay overlaid with patches of gravel topped by deeper humus forms the north;...25 KB (2,308 words) - 13:14, 18 March 2024
- channels; such are the alluvial gravels and brick-earths upon which much of “greater London” is built. In some regions alluvial deposits are the resting
- Encyclopaedic Dictionary of World Musical Instruments, Global Vision Pub House Alluvial copper is generally believed to be the first metal ore that was fashioned
- like a broad flat valley or plain, an alluvial fan develops at the base of the slope (Figure 10.7). An alluvial fan is a curved top, fan shaped deposit