Zoom out to an eye altitude of 500 miles to see the source...

Zoom out to an eye altitude of 500 miles to see the source of the sediment that is accumulating in this area. This sediment is __________ and if lithified would be called __________.
a. Immature, Conglomerate
b. Intermediate, Sandstone
c. Mature, Shale

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Sediment Maturity

Sediment maturity refers to the extent to which sediment particles have been weathered, transported, and sorted. Mature sediments have undergone extensive weathering and transport, resulting in a well-sorted mixture dominated by fine, rounded particles with fewer rock fragments, whereas immature sediments have a more diverse composition and include larger, angular fragments.

Lithification

Lithification is the process that transforms loose sediment into solid sedimentary rock through compaction and cementation. The original characteristics of the sediment, such as grain size, sorting, and mineral composition, determine the type of rock formed; for example, fine-grained sediments typically lithify into shale, medium-grained sediments into sandstone, and coarse, poorly sorted sediments into conglomerate.

Grain Size and Sorting in Sedimentary Rocks

The grain size and degree of sorting in sediment are fundamental factors in classifying sedimentary rocks. Well-sorted, fine-grained deposits often result in rocks like shale due to the predominance of clay minerals, while coarse-grained or poorly sorted deposits can lead to the formation of conglomerates or sandstones, reflecting their distinct depositional environments and transport histories.

Transcript

Please give Ace some feedback