Review of Short Phrases and Links|
This Review contains major "Sediments"- related terms, short phrases and links grouped together in the form of Encyclopedia article.
- Sediments, the top layer of material on a tectonic plate, that accumulate and deform where oceanic and continental plates collide.
- Sediments are seldom composed entirely of silt but rather are a mixture of clay, silt, and sand.
- Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers.
- Sediments were washed from the continent into the sea along its northern margin.
- Sediments are distributed on the continental margins (as Neritic sediments) and in the deep ocean basins (as Oceanic sediments).
- Minerals precipitated from the pore waters in these sediments cement together adjacent sediment grains.
- At that point in Earth 's history these rocks made up the soft bottom sediments of a large, shallow ocean, which stretched across much of North America.
- The entrance channel and basin are subject to rapid shoaling due to sediments from Nushagak Bay, and annual maintenance dredging is attempted each year.
- This lower diversity of Nushagak Bay is most likely due to its low salinity, high turbidity, and silty sediments.
- Halloysite is a clay mineral formed mainly on volcanic material and does not normally contribute significant amounts to river sediments.
- Landslides from the caldera rim thereafter formed debris fans and turbidite sediments on the lake bed.
- Space for these sediments is called accommodation space and is due to subsidence of especially the transitional crust.
- Hypoxia can occur throughout the water column and also at high altitudes as well as near sediments on the bottom.
- As sediments settled, the sea floor slowly subsided allowing many hundreds of metres of Jurassic sediments to accumulate.
- Refractory white clay occurs in the eastern region, in the Carboniferous and Jurassic sediments, and is extracted from the 14th century near Gzhel.
- Ordovician and Silurian sediments folded in the Caledonian Orogeny cover much of Wales, north and south.
- Some authorities have suggested erosion of the primitive soil is the reason for the often brownish appearance of Silurian sediments.
- At Badlands National Park, weird shapes are etched into a plateau of soft sediments and volcanic ash, revealing colorful bands of flat-lying strata.
- This may include soft sediments, rocks and logs as well as fish, water birds, amphibians, reptiles and sometimes one's self.
- Research on bioavailability, toxicity, and environmental fate of TNT in aquatic sediments and heavy metal bioavailability in soil.
- It usually consists of sediments scraped off the subducting slab to form an accretionary wedge or prism, sometimes called the subduction complex.
- Nushagak Bay is a vast glacial-estuarine landscape that has been dominated by glacial sediments for at least the last 150,000 years.
- The consequent thin sedimentary cover makes it much easier to study arc infrastructure and determine the mass and composition of subducted sediments.
- The Western Andes are much younger than the Eastern Andes, being formed of Tertiary, Pleistocene and Recent volcanic rocks rather than sediments.
- Because mostly volcanic rocks are weathering the sediments are lithic-rich.
- These fault-bounded basins are filled with volcanic rocks and continental sediments that include vertebrate fossils.
- The continental shelves are covered by terrigenous sediments; that is, those derived from erosion of the continents.
- In the Early-Middle Carnian, this area is dominated by a marine transgression with marly limestone, pelagic, and terrigenous sediments.
- These terrigenous sediments occur mostly on the continental shelves, slopes, and rises, and they merge into abyssal plains.
- Depending on circumstance, geochemical exploration samples soils, rock and lake and stream sediments.
- GEOCHEMICAL SIGNATURE: Resistant niobium or phosphate minerals in soils and stream sediments; F, Th and U in waters.
- Because of its resistance to weathering it is very common in stream sediments and in residual soils.
- A fissile rock composed of layers of claylike, fine-grained sediments.
- Marine and continental sediments of the Atlantic Coastal Plain, Cretaceous to Recent in age.
- Apart from continental sediments, rift basins normally also have part of their infill consisting of volcanic deposits.
- The Shaydan and Shankol units are composed of oceanic rocks; the Toguzbulak unit, of continental sediments.
- Chemical and Organic Sedimentary Rocks are the other main group of sediments besides clastic sediments.
- Eugeosyncline: The seaward part of a geosyncline; characterized by clastic sediments and volcanism.
- The processes of weathering tend to separate out the elements from an igneous rock, concentrating elements lower in the reaction series in clastic sediments.
- The original sediments that formed the black schists could have been shale and siltstone comparatively rich in carbonaceous materials.
- The whale feeds mainly on benthic crustaceans which it eats by turning on its side (usually the right) and scooping up the sediments from the sea floor.
- These sediments can eventually form sedimentary rocks (see rock).
- This clay layer, known as the "Fish Clay" in Europe, is widely accepted worldwide as the boundary between Cretaceous and Tertiary sediments.
- A biostratigraphy of Tertiary sediments deposited close to the continental margins has been developed by using remains of planktonic floras and faunas.
- Thick upper Tertiary sediments also underlie part of the shelf in eastern Sabah, extending landward across Dent Peninsula.
- Ocean sediments are composed of terrigenous, pelagic, and authigenic material.
- Thiomargarita namibiensis ("Sulfur pearl of Namibia ") is a gram-negative coccus Proteobacterium found in the ocean sediments of the continental shelf.
- Even though the rates of sulfate use and sulfide production are highest in surface sediments, free sulfide does not always accumulate there.
- Meanwhile, down in the Nile Delta the land is slowly sinking because of erosion due to the decrease in river sediments.
- For this reason it was commonly used by the gold diggers to extract gold from crushed rocks and river sediments.
- New Orleans sits within a shallow depression underlain by unconsolidated (loosely settled) river sediments.
- Dasch, J. (1969). Strontium isotopes in weathering profiles, deep-sea sediments, and sedimentary rocks.
- The lake's wave activity eroded the geode-bearing rhyolite and redeposited the geodes several miles away in the Dugway geode bed area as lake sediments.
- Similar peperite developed in Kissomlyó, a small tuff ring remnant, where dykes invaded lake sediments that formed within a tuff ring.
- Analyses of soil, till, and stream or lake sediments can indicate geochemical anomalies caused by mineralization in nearby bedrock.
- Fast-spreading ridges, with their subdued topography, lack the axial rift, and volcaniclastic sediments are rare.
- We have discovered thermogenic hydrocarbons in unconsolidated Recent sediments from the King George Basin, Bransfield Strait, west Antarctica.
- Rocks and sediments are added to glaciers through various processes.
- The waters of Hungary’s Lake Balaton, the largest lake in Central Europe, appear bright green due to silty sediments and algae.
- Evidence of first settlement at the site has been made inaccessible by the rise of sea level and deposition of sediments from the Maeander.
- Currently, we are examining spatial variation in Hg levels in fish, invertebrates, and sediments in the Rio Grande, the Pecos River, and their tributaries.
- As the tourmaline contains boron, there must have been some permeation of vapors from the granite into the sediments.
- These include boron and carbon isotope ratios in certain types of marine sediments, and the number of stomata observed on fossil plant leaves.
- They suggest that a fault lies parallel with and westward of Fuerteventura, eastward of which the sediments on the sea floor are 6 km thick.
- The diamonds, generated from coal or other carbon in sediments, are generally porous and coloured.
- The diamonds found in the Tertiary sediments and present day rivers of Kalimantan, Thailand, Burma and Sumatra are characteristically similar.
- As a plate is subducted, much pore water is released early and flushed into the wedge of sediments scraped from the descending plate.
- What the sediments are made of is clearly related to the types of rocks which are found upstream.
- The sediments in this basin record a complicated Neogene history of folding, faulting, uplift, subsidence, and magmatic intrusion (12).
- The uplift of the Caledonian orogeny brings most of Britain above sea-level and terrestrial sediments are shed off of the Caledonian mountains.
- Features described might include bedrock geology; surface material; and landslides, sediments deposited by wind, water, or ice, and geologic structures.
- Usually, the rock pieces, called sediments, drop from the wind or water to make a layer.
- These sediments are transported into the forearc basin either by wind or by turbidity currents.
- The sediments, as defined in this diagram, do not include the ~70 million GtC of carbonate rock and kerogen.
- The reservoirs are the atmosphere, terrestrial biosphere (usually includes freshwater systems), oceans, and sediments (includes fossil fuels).
- Montmorillonite converts to illite in sediments; illite, to muscovite under conditions of low- grade metamorphism.
- Mineral content of the sediments in order to abundance are quartz, feldspars, magnetite, staurolite, hornblende, anatase and andalusite.
- Matter > Materials > Rocks > Sedimentary Rocks
- Places > Earth > Geology > Cretaceous
* Ancient Rocks
* Baleen Plates
* Billion Years
* Bottom Sediments
* Clastic Sedimentary Rocks
* Continental Crust
* Florida Bay
* Igneous Rocks
* Lower Cretaceous
* Marine Environments
* Marine Sediments
* Metamorphic Rocks
* Meters Thick
* Mountain Belt
* Oceanic Crust
* Ocean Floor
* Organic Carbon
* Organic Matter
* Sedimentary Basins
* Sedimentary Rock
* Sedimentary Rocks
* Subducting Plate
* Unconsolidated Sediments
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