Which of the following statements depend on the absolute dating of events?
The statement that depends on the absolute dating of events is this: The oldest Earth rocks are 3.9 billion years old. Absolute dating is the method of determining the specific date of an archaeological or paleontological artifact.
Which of the following methods can be used to determine the relative age of rock and strata select all that apply?
Answer: Apply stratigraphy and paleontology dating methods to determine the relative age of rock strata.
How do geologists use relative dating?
Relative dating puts geologic events in chronological order without requiring that a specific numerical age be assigned to each event. Second, it is possible to determine the numerical age for fossils or earth materials.
How do relative and absolute dating affect the result of the geologic time scale?
They used relative dating to divide Earth’s past in several chunks of time when similar organisms were on Earth. Later, scientists used absolute dating to determine the actual number of years ago that events happened. The geologic time scale is divided into eons, eras, periods, and epochs.
What are two types of geologic dating?
Geologic time is often dicussed in two forms: Relative time (“chronostratic”) — subdivisions of the Earth’s geology in a specific order based upon relative age relationships (most commonly, vertical/stratigraphic position).
What are the three major divisions of geologic time?
The Phanerozoic is subdivided into three major divisions: the Cenozoic, Mesozoic, and Paleozoic Eras.
How is Paleontology used as evidence of evolution?
Fossils can also provide evidence of the evolutionary history of organisms. Paleontologists infer that whales evolved from land-dwelling animals, for instance. Fossils of extinct animals closely related to whales have front limbs like paddles, similar to front legs. They even have tiny back limbs.
What does paleontologist mean?
a scientist who specializes in the study of life forms that existed in previous geologic periods, as represented by their fossils:The education program manager for the museum has worked as a paleontologist, digging up dinosaur bones in Wyoming.
Who is father of paleontology?
What does Permineralization mean?
A common form of fossilization is permineralization. This occurs when the pores of plant materials, bones, and shells are impregnated by mineral matter from the ground, lakes, or oceans. In some cases, the wood fibers and cellulose dissolve and are replaced minerals.
What type of fossil could you pull DNA from?
Fact then followed fiction and a series of papers in 1992 and 1993 reported that scientists had been able to extract DNA from various fossils, including insects in amber and even from dinosaur bone preserved in sandstone.
What is formed when tree cell walls are replaced by minerals?
Less useful are remains that are petrified, literally turned into stone, because even the cell walls are replaced by mineral. In Oregon, permineralized and petrified wood is generally preserved by silica derived from the alteration of volcanic rocks.
What is an example of mineral replacement?
Replacement. The original shell or bone dissolves and is replaced by a different mineral. For example, calcite shells may be replaced by dolomite, quartz, or pyrite.
What kind of trees are in the Petrified Forest?
Much of the park’s petrified wood is from Araucarioxylon arizonicum, an extinct conifer tree, while some found in the northern part of the park is from Woodworthia arizonica and Schilderia adamanica trees.
Are fossils mineralized?
A common mode of fossilization is mineralization, the replacement of organic material by inorganic minerals. The most common dinosaur fossils are the mineralized remains of bones and teeth. Bones are composed of calcium phosphate and organic material. Common mineralizing media are calcite, iron minerals, and silica.
Which type of rock is the best for fossil hunting?
How do scientist use fossil records?
Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth. There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind.