Our Origins: Discovering Physical Anthropology (Fourth Edition)
4th Edition
ISBN: 9780393614008
Author: Clark Spencer Larsen
Publisher: W. W. Norton & Company
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Chapter 8, Problem 3SQ
Summary Introduction
Introduction: Dating is a technique used in archeology for ascertaining the fossil's age, artifacts, and some precious items. It can be classified into two broad categories, including absolute and relative dating.
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Students have asked these similar questions
Which of the following techniques examines the decay of carbo
an object?
A. Radiometric dating
B. Mesozoic dating
O C. Relative dating
D. Precambrian dating
O O
Which of the following is NOT true for relative dating methods:
A. Relies on observational skills
B. Includes stratigraphy which is based on ordered layers that build up over time
C. Determines if one artifact or fossil is older than another
D. Gives you specific dates of the artifact or fossil
Radioisotopes are useful in dating fossils and rocks because
a.
they are present in very high amounts.
b.
they decay rapidly.
c.
they decay in a predictable pattern over long time period.
d.
their rate of decay changes over time.
Chapter 8 Solutions
Our Origins: Discovering Physical Anthropology (Fourth Edition)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- One problem in radiocarbon dating of biological samples, especially very old ones, is that they can easily be contaminated with modern biological material during the measurement process. What effect would such contamination have on the estimated age? Why is such contamination a more serious problem for samples of older material than for samples of younger material?arrow_forwardWhich method is used to assign numerical ages to events or materials? absolute dating half-life dating isotope dating relative datingarrow_forwardIf the half-life of a radioisotope is 20,000 years, then a sample in which three-quarters of that radioisotope has decayed is _______ years old. a. 15,000 b. 26,667 c. 30,000 d. 40,000arrow_forward
- Match the reliable age range of the right with the appropriate technique on the left. Thermoluminescence [ Choose] Choose] Ages greater than 1,000 years ago. Ages between 1,000 years ago and 600 kya. Ages greater than 100 kya Ages between 300 BP and 300 kya. Ages between 0- 50 kya. [Choose ] Uranium-Thorium K-Ar (Potassium-Argon) Fission Track [ Choose ] Radiocarbon (14C) [Choose ]arrow_forwardWhich of the following dating methods provides a relative age for a rock section? a. paleomagnetic dating b. biostratigraphy c. faunal correlation d. all of the above e. none of the abovearrow_forwardVolcanic ash can be used to date fossil finds because each time it is expelled by an eruption it has the same relative proportions of radioactive isotopes. True or Falsearrow_forward
- Which of the following are useful for reconstructing ancient environments? Group of answer choices A: the ice layers found in glaciers B: Oxygen isotope analysis C: Cores taken from ocean sediments D: fossil remains of plants and animals E: All of these answers are truearrow_forwardRadiometric dating does not measure the age of an individual atom. It is a measure of the age of a quantity of atoms—a statistic. As with any statistical measure, its values may deviate around an average (sampling error, Section 1.8). Imagine that one sample of rock is dated ten different ways. Nine of the tests yield an age close to 225,000 years. One test yields an age of 3.2 million years. Do the nine consistent results imply that the one that deviates is incorrect, or does the one odd result invalidate the nine that are consistent?arrow_forwardThe Miller-Urey experiment simulated compounds present in the atmosphere of early Earth, lightning, and the evaporation and condensation of atmospheric water. What other information about the conditions on Earth during this time period would you want to know to improve the experimentarrow_forward
- Which parent isotope is most useful for dating samples that are greater than 100 million years old? a potassium-40 b lead-206 c argon-40 d uranium-238arrow_forwardA. How old is the Earth? B. How long did the longest eon (so far) last? C. How many years ago did the most recent epoch begin? D. How many mass extinction events has the Earth witnessed so far?arrow_forwardWhy is it hard to create a timeline of events chronicling Earth’s History?arrow_forward
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