Which of the following lists accurately reflects an increase in grain size from smallest to largest group of answer choices?
An immature clastic rock has well-sorted resistant grains. D. Pieces of broken rock produced by physical weathering are collectively called clasts or detritus. D.
Which of the following sedimentary structures indicates that the sediments were deposited in a moving fluid?
Which of the following sedimentary structures indicates that the sediments were deposited in a moving fluid? Ripple marks.
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 type of rocks would form under the depositional environment shown in the figure quizlet?
What type of clastic sedimentary rock will form from the environment shown below? Clastic sedimentary rocks form in different depositional environments.
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?
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?
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?
What are the types of sedimentary structures?
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?
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?
…
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