Relative Dating of Rock Layers
Cross-cutting relationships. A rock unit that is broken formed before the break did. There is no filling in. Relative dating. a. Determining the sequence of events in Earth's history . zircons are ideally suited for radiometric dating because . what statement best describes the influence of seafloor spreading on sea level?. which rock is best suited for radiometric dating? true. true or false: The fossil record is biased toward preserving organisms with hard parts. false. True or false: the first life on earth developed during the Cambrian Period. cross-cutting. Which concept could be used to relatively age date an igneous intrusion? Pore spaces. which rock is best suited for radiometric dating? fossil record. true. The fossil record is biased toward preserving organisms with hard parts. first life. false: the first life on earth developed during the Cambrian Period. cross-cutting. Which concept could be used to relatively age date an igneous intrusion? Pore spaces between.
Which of the following is an example of a numerical date? The pumice is 43 million years old; The limestone formed at the link of the Ordovician. Following the deposition of a sequence of sedimentary rocks, which event is the first to occur to produce an angular unconformity?
Which of the following is an accurate description of a nonconformity? Which of the following is a common feature that all unconformities exhibit? Magma intrudes into layers of sedimentary rock and displaces them.
A fault cuts through layers of limestone, sandstone, and conglomerate. A mass of granite has inclusions of surrounding sandstone. The sandstone and surrounding layers show evidence of uplift over time. Which conditions favor fossil preservation? The organism is buried quickly. Petrified wood is an example of what type of fossil preservation?
What are the characteristics of an index fossil? Limited to a short span of geologic time, but widely distributed.
The half-life of what into argon is 1. When is potassium useful? The half-life of what to what is 5, years old? How do you determine Index fossils? Gathering the evidence and making comparisons.
Which of the following represents the shortest interval of time? Which rock is best suited for radiometric dating? Which of the following is an example of strain produced by compressional stress? The crust is shortened and thickened. Which of the following would contribute to ductile deformation in a rock? Increasing the temperature of a rock; Changing a crystalline igneous rock into a metamorphic rock; Slowly increasing confining pressure.
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Which of the following is a process that forms a large basin? Buildup of a large amount of sediment.
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A map view of a region shows a circular rock pattern with the oldest rocks in the center of the pattern. What structure would create such a pattern on the surface?
Which two features are typically found associated with article source other? Which fault will see the hanging wall move down relative to the footwall? The first life on Earth developed during the Cambrian Period. Which of the following scenarios best describes the deformation that will occur in different parts of the crust? Brittle deformation is dominant in the shallow crust; ductile deformation is dominant in the deep crust.
Which of the following is an example of how rocks will respond to compressional stress? Which tectonic stress will result in a lengthening of the crust?
Which of the following statements is true about erosion? Erosion varies form place to place. Where do valleys tend to form in a landscape? Valleys form where rock layers are easily erodible soft.
Which of the following processes resulted in the deformation of sedimentary units in the American West during the Jurassic Period? Which of the following examples best illustrates the effects of ductile deformation?
Rocks along a convergent plate boundary are subjected to compressive force for millions of years and are permanently folded. A series of synclines and anticlines is oriented with the hinge lines of the folds trending east-west. From which directions did the force come to create these folds?
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The anticline that makes up Sheep Mountain is rather small and restricted in extent. What other local feature might be present that would constrain this fold to a small geographic area? When viewed form the air, the Bighorn River cuts across the Sheep Mountain anticline.
As Sheep Mountain is a topographic high and barrier to streamflow, how was the river able to establish itself and eventually erode through the anticline?
The Ancestral Bighorn River established a course over the landscape while the anticline was still buried at depth. Choose the click definition of a monocline: A large steplike fold in otherwise flat-lying sedimentary rocks.
Which of the following is required for a monocline to form? Reactivation of steeply-dipping faults in basement rocks. What is a scarp? Alluvial fans are composed of material built up from sediment form the foot of the mountains to the valley floor.
Markers for the time that the organisms were on Earth. If a limestone, a shale, and a sandstone are deposited in that order without interruption, which of the following is true? Valleys form where rock layers are easily erodible soft.
Death Valley is a tectonically active region. The Basin and Range consists of north-south trending mountain ranges separated by basins. What causes this distinct topography? Extension due to normal faulting causes valley floors to sink. Upgrade to remove ads.