________, a common mineral found in igneous rocks, is the most abundant mineral in detrital sedimentary rocks.
Compaction is a very important part of the lithification process for which of the following sediments?
Which of the following best describes bedded gypsum and halite?
evaporates; chemical, sedimentary rocks
What is probably the single most important, original, depositional feature in sedimentary rocks?
bedding or stratification
Studies of deep-sea sediment cores have contributed greatly to scientific knowledge of ________.
climatic changes during the last four million years
What is the main difference between a conglomerate and a sedimentary breccia?
Breccia clasts are angular; conglomerate clasts are rounded.
Detrital sedimentary rocks are classified (named) based on the ________.
grain sizes of the detrital particles
Which of the following applies to the basic constituents of halite, gypsum, and sylvite?
transported as dissolved ions; deposited by evaporation
Sedimentary rocks account for about what percentage of the Earth's outermost 10 kilometers of rock (first percentage). Also, what percentage of the Earth's continental area is covered by sedimentary rocks (second percentage)?
Which of the following sedimentary rocks would you expect to have originally been deposited by fast-moving streams?
Oolitic limestone is most likely to form in what type of depositional environment?
shallow, clear, marine waters with vigorous current activity
Which characteristic is absolutely necessary for a sedimentary rock to have potential as a possible reservoir rock for oil or gas?