according to the diagram below, which sediment sample has traveled the shortest distance and why?

Particle size is an important textural parameter of clastic rocks because it supplies information on the conditions of transportation, sorting, and deposition of the sediment and provides some clues to the history of events that occurred at the depositional site prior to final induration.

What happens as sediment is transported downstream?

As sediment is transported downstream, away from its point of origin, the particles become: smaller. Flint was prized in early human cultures because: they broke with conchoidal fracture and thus made good cutting tools.

What kind of sedimentary structure is pictured in the photograph below?

*The sedimentary structure(s) pictured below is (are): Cross beds.

How were thick layers of halite and gypsum deposited beneath the Mediterranean Sea?

How were thick layers of halite and gypsum deposited beneath the Mediterranean Sea? At times of low global sea level, the Mediterranean Sea was cut off from the Atlantic Ocean, and the trapped seawater evaporated. More mature sediments are typically what? … Where is a sedimentary basin likely to be found?

What type of sediment is typically found in lake bottoms?

Lake sediments are comprised mainly of clastic material (sediment of clay, silt, and sand sizes), organic debris, chemical precipitates, or combinations of these.

When relative sea level rises and the shoreline migrates inland This process is called?

lithification. When relative sea level rises, the shoreline migrates inland in a process called. transgression.

What does sandstone and shale tell us about sea level?

A sedimentary outcrop consisting of limestone, shale and sandstone indicates that sea level was falling at this particular location while the sediments were being deposited. … It is common to see sandstone in a beach environment, where the waves and tides move sand back and forth over time.

Which type of rock creates a record of changing environments and sea level over time?

Sedimentary rocks typically preserve numerous clues as to how and where the original sediments were deposited. Over time, regional climates may change, sea level may rise and fall, or tectonic activity, volcanism, or regional erosional patterns may change.

What characteristic can be used to distinguish sample a conglomerate from sample B breccia quizlet?

A conglomerate is a coarse-grained sedimentary rock formed by the cementation of ROUNDED gravel. It can be distinguished from breccia by the definite roundness of its particles.

Where do muddy sediments accumulate?

Much sediment is deposited where rivers empty into lakes, or into the ocean. This is because the velocity of the stream current comes to a stop there, and as the flow slows down, the sediments being transported by the stream settle to the bottom and are deposited.

Which of the following would be most useful form of evidence to determine the depositional environment of limestone?

A. Limestone can form by the deposition of dead microscopic calcite-bearing organisms in shallow ocean basins. … As is shown in figures 5 & 6 in the lab manual, sedimentary structures are useful to determine the original depositional environment of a sedimentary rock.

What are sediments How are sediments formed?

Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.

How do sediments become sedimentary rock quizlet?

sedimentary rock. Weathering sediments become cemented together, they form_____________. deposition. As a result of _____________, sediments are laid down on the ground or on the bottom of bodies of water. lithification.

How does a layer of sediment become a clastic sedimentary rock quizlet?

Sedimentary rocks formed when minerals are dissolved in water and then the water evaporates. … When layers of sediment are squeezed together. Cementation. When sediments are glued together to form rock.

How does sediment move in streams?

Sediment moves from one place to another through the process of erosion. Erosion is the removal and transportation of rock or soil. Erosion can move sediment through water, ice, or wind. Water can wash sediment, such as gravel or pebbles, down from a creek, into a river, and eventually to that river’s delta.

How is sediment transported in streams?

Most of the sediment transport occurs in high flow conditions. … Sediment load is the solid material carried by water and transported through saltation (bouncing), traction (rolling and dragging) and suspension (carrying in water).

What happens to the size shape and sorting of sediment as transport distance increases?

7.3: The prolonged transport of sediment by water and wind current affect the particles in two ways: (1) reduction in particle size and (2) rounding of originally angular fragments. The greater the distance of transport, the smaller and more rounded the grains.

Which of the examples below shows how carbon moves from the geosphere directly to the atmosphere?

Which of the examples below shows how carbon moves from the geosphere directly to the atmosphere? The burning of fossil fuels (e.g., coal) releases carbon dioxide directly into the atmosphere.

Why do graded beds have coarse sediments at the bottom and finer sediments upwards?

Density and gravity forces in the downward movement of these materials in a confined system result in a separating of the detritus settling with respect to size. Thus, finer, higher-porosity clasts form at the top and denser, less porous clasts are consolidated on the bottom, in what is called normal grading.

What are the types of sedimentary structures?

Sedimentary structures include features like bedding, ripple marks, fossil tracks and trails, and mud cracks.

Which process of transporting sediment will deposit the most well sorted sediment?

Wind, on the other hand, is the best sorter of sediment, because it can usually only transport sediment that ranges in size from sand to clay. Occasional variation in wind speed during transport serves to further sort out these sediment sizes.

Is halite a clastic sedimentary rock?

Clastic (or detrital) rocks are made of clay, silt, sand, gravel, and/or boulders. … Evaporite rocks form when sea water or lake water dries up and precipitates gypsum (CaSO4·2H2O), halite (NaCl), or other minerals. Evaporites are chemical sedimentary rocks.

At what salinity does halite precipitate?

Thus, a rim of evaporitic carbonates, which become increasingly Mg-rich with increasing salinity, typically surrounds an aureole of gypsum; this aureole, in turn, surrounds halite, which begins to precipitate at seawater concentrations of 340–360%.

Is mud on the bottom of a lake sediment?

Lake sediment (mud) accumulates continuously at the bottom of many lakes, meaning that the deeper you go into the mud, the further you go back in time. This mud contains different types of fossils that can be used to reconstruct changes in the lake, surrounding terrestrial environment, and climate.

Which rock is composed of the smallest sedimentary clasts?

Siltstone is made of smaller particles. Silt is smaller than sand but larger than clay. Shale has the smallest grain size.

Clastic Sedimentary Rocks.

Rock Sediment Size Other Features
Breccia Large Angular
Sandstone Sand-sized
Siltstone Silt-sized, smaller than sand
Shale Clay-sized, smallest

What causes silt in a lake?

soil particles that settle at the bottom of a body of water. Sediment can come from soil erosion or from the decomposition of plants and animals. Wind, water and ice help carry these particles to rivers, lakes and streams.

When sea level rises the shoreline migrates inland flooding the land and depositing coastal sediments over preexisting terrestrial sediments What is it called?

When sea level rises (as shown in the image), the shoreline migrates inland, flooding the land and depositing coastal sediments over pre-existing terrestrial sediments. This process is called. Transgression.

Which of the following sedimentary structures indicates sediments?

Which of the following sedimentary structures indicates that the sediments were deposited in a moving fluid? Ripple marks.

Which of the following will happen to sediment as it is transported downstream?

As sediment is transported downstream, away from its point of origin, the particles become: smaller. Flint was prized in early human cultures because: they broke with conchoidal fracture and thus made good cutting tools.

How would you distinguish conglomerate sandstone and shale from each other on this basis?

In conglomerate, the stones are rounded. In breccia, the stones are angular. Sandstone is made of sand-sized particles. … Shale is made mostly of clay-sized particles and hardened mud.

Sedimentary rock interpretation: 3 key concepts from the exam

Lec 11: Sediment Transport in River

SPEC EEE AISPSP 2020 Day 3 2020 06 04 16 12 18

Lecture 56: Sediment Sampling

Related Searches

which of the following does not reflect transport distance
the feature that may form where a stream enters a lake is called
as sediment is transported downstream, away from its point of origin, the particles become
ripple marks, dunes, and cross bedding are useful indicators of
if you find quartz sandstone in the place where it formed, you know you are looking at an ancient
graded beds are an indicator of
which of the following is not a clastic sedimentary rock
when sea level rises, the shoreline migrates inland

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according to the diagram below, which sediment sample has traveled the shortest distance and why?

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