Absolute (numerical) age of a geologic event represented by a rock unit or forma

Question

Absolute (numerical) age of a geologic event represented by a rock unit or formation is measured by a technique called: carbon dating relative dating radiometric dating fossil dating Which area in the Earths geological time scale is dominated by the dinosaurs? Cretaceous Jurassic Paleozoic Mesozoic Which of the following is NOT a geologic time scale unit in Earths history? epoch eon chapter period Which of the following represent the SHORTEST amount of time in Earths geologic history? epoch eon blink of an eye era Which of the following paired matches is INCORRECT? Mesozoic - age of dinosaurs Cenozoic - age of mammals Paleozoic - age of invertebrates Precambrian - age of fishes What is the commonly accepted age of the earth? 4.5 million years 4.5 billion years 2000 years 250 million years A type of stress which causes pulling apart of rocks, hence causing normal faults, is called stretching shear tension compression Which of the following matched pairs is INCORRECT? tension - normal fault shear - strike slip fault compression - anticline tension - syncline What is the name of the epoch we are currently living in? Pleistocene Holocene Jurassic Cenozoic In an anticlinal (antiform) fold, the OLDEST strata (sedimentary layers) are located: at the center along the edges on the top at the bottom During a recent field trip, you observed a rock formation consisting of garnet-mica schist is in contact with a sedimentary strata of sandstone and shale. The unconformity existing between these two diverse rock formations can be best described as a(n): angular unconformity nonconformity disconformity angular disconformity In radiometric dating technique, parent-daughter isotope of isotope ratio of 50/50 is known as: half-life middle point In a rock sample, if the original parent isotopes were 100, how many of them would be remaining after 3 successive half lives elapsed? 50 25 75 12.5

Explanation / Answer

Question 1

Answer: c

Radimetric dating.

Absolute age of a greological event represented by a rock unit or formation is measured bu a technique called radiometric dating.

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