Exam 7: Pages of Earths Past: Sedimentary Rocks

Sea level rises locally,and marine sediments are deposited on top of terrestrial sediments during events termed ________.

Beach sediments travel ________ the ocean during a transgression and ________ the ocean during a regression.

Which of the following is NOT true about regressions?

A fine-grained clastic sedimentary rock that splits into thin sheets is ________.

The image below of Death Valley,CA,shows a road that curves around a(n)________.

As compared with metamorphism,diagenesis ________.

The image below shows ancient dunes exposed in Zion National Park in Utah.Using the interpreted portion of the image at the left,what was the dominant wind direction that formed these sedimentary structures?

Chemically precipitated limestone that forms in caves or around hot springs is termed ________.

When graded beds are observed in a rock outcrop,this tells geologists that a ________.

Biochemical limestones are dominated by carbonate mud and fragments of ________.

Diagenesis refers to ________.

The image below shows an outcrop of coarse-grained sedimentary rock.Note the rock hammer for scale.What is the name of this rock type?

Compaction and cementation of grains occurs during ________.

The removal of detritus from weathered rock at an outcrop is termed ________.

Pulling a block of clay apart,resulting in the middle portion thinning and sinking,is an adequate analogy for ________.

Which of the following is NOT true in regard to biochemical chert?

Topset,foreset,and bottomset beds are indicative of ________ environments.

When limestone becomes chemically altered so that half of the calcium atoms are replaced by magnesium,the resultant rock is termed ________.

Which of the following is NOT true? Sediments deposited in a beach environment are typically ________.

The majority of the rocks that occur at the surface of Earth are ________.