What is Relative Dating? - Law of Superposition, Principles of Original Horizontality & Cross-Cutting Relationships
Geologic Time Concept 2 Quiz. Which of the following laws or principles do we credit to Nicolaus Steno in the late s? Match the law or principle of relative dating with the appropriate description. Using the pulldown boxes, match each item on the left to the corresponding item at right. Choice A Choice B Choice C Choice D. Why are inclusions in rocks excellent indicators of relative age? Inclusions are older than the rock in which they are found because the inclusion must have been part of some pre-existing rock, now somehow contained within a relatively new rock.
Inclusions are usually the same age as the rock in which they are found because the inclusion and the rock that contains it must have formed at the same time. Inclusions are younger than the rock in which they are found because the inclusion must form after the rock that eelative contains it. Inclusions are sites within a rock of missing time and were originally horizontal and cross-cutting. Which principle or law is employed in understanding the history displayed by the rocks in the photograph?
A surface of erosion with older strata above and younger strata below. A fault or fracture with younger strata above and older strata below. A fault or fracture with older strata above and younger strata below. A surface of erosion with younger strata above and older strata below. is the significance of an unconformity in the rock record?
Choose all that apply. Unconformities represent uninterrupted, consistent deposition of sediment. Unconformities represent periods of faster or increased deposition of marine sediment. Match the type of unconformity with the appropriate description. Choice A Choice B Choice C. Which of the following is true about a disconformity? The strata exhibit parallel bedding or stratification, making the unconformity difficult to recognize.
The younger strata were tilted before the older strata were deposited, making the unconformity easy to recognize. The younger strata were eroded away before xtratigraphic older strata were tilted, relative dating and stratigraphic principles quiz the unconformity difficult to recognize. The older strata were tilted when the younger strata were deposited, making the unconformity easy to recognize. Why is an angular unconformity the relative dating and stratigraphic principles quiz type of unconformity to recognize datinh understand?
It consists of tilted or folded sedimentary rocks beneath younger, more horizontal strata, creating an angle across the unconformity. It consists of sedimentary rocks that are in contact with parallel-layered metamorphic rocks, like gneiss. It consists of horizontal stratified sedimentary rocks both realtive it and above it, creating no angle across the unconformity.
It consists princkples metamorphic rocks above a set of sedimentary rocks in fault contact, creating no angle across the unconformity coupled with fault breccia at the surface. Which of the following geologic observations relative dating and stratigraphic principles quiz NOT bear directly on working out the sequence of geologic events in an area? Some questions in this exercise may have more than one correct answer.
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