What type of sediment would you expect to find in this...

Name: Problem 45, Chapter 10: Laboratory Manual for Introductory Geology
Uploaded: 2020-06-22T23:01:53-08:00
Duration: 2 min 34 s
Channel: Kendrick Buford
Description: What type of sediment would you expect to find in this depositional environment? a. Mostly mature clastic sediments with some biochemical and chemical sedimentary sediments b. Mostly biochemical and chemical sedimentary sediments with some mature clastic sediments c. Exclusively organic sediments d. Exclusively biochemical sediments e. Exclusively immature clastic sediments

What type of sediment would you expect to find in this depositional environment? a. Mostly mature clastic sediments with some biochemical and chemical sedimentary sediments b. Mostly biochemical and chemical sedimentary sediments with some mature clastic sediments c. Exclusively organic sediments d. Exclusively biochemical sediments e. Exclusively immature clastic sediments

What type of sediment would you expect to find in this depositional environment?
a. Mostly mature clastic sediments with some biochemical and chemical sedimentary sediments
b. Mostly biochemical and chemical sedimentary sediments with some mature clastic sediments
c. Exclusively organic sediments
d. Exclusively biochemical sediments
e. Exclusively immature clastic sediments

Key Concepts

Organic Sediments

Organic sediments are primarily composed of decomposed remains of plants and animals. These sediments are found in environments where biological productivity is high and where conditions allow for the preservation of organic matter, such as in anoxic settings that slow down decomposition.

Biochemical and Chemical Sediments

These sediments form from biological and chemical processes rather than mechanical erosion. Biochemical sediments typically originate from the skeletal remains of organisms, such as shells, and chemical sediments form by the precipitation of minerals from solution. Their presence in a depositional environment is heavily influenced by the water chemistry and biological productivity of the setting.

Sediment Classification

Sediment classification involves categorizing sediments based on their origin, composition, and texture. Key distinctions include clastic sediments, which are composed of fragments of other rocks, and chemical or biochemical sediments, which form from the precipitation or accumulation of biological or chemical components in depositional environments.

Depositional Environment

This concept refers to the specific physical setting in which sediments are deposited. It includes factors such as energy levels, water chemistry, biological activity, and climate, all of which influence the type, composition, and sorting of the sediments that accumulate over time.

Clastic Sediments

Clastic sediments consist of fragments or particles derived from pre-existing rocks and minerals. A further subclassification considers the maturity of these sediments, where mature clastic sediments have been well sorted and rounded due to prolonged erosion and transport, while immature clastic sediments tend to be poorly sorted with angular grains that indicate minimal transport.

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