QUESTION 1 Stromatolites are layered structures produced by the activity of ____

Question

QUESTION 1 Stromatolites are layered structures produced by the activity of __________. dinosaurs cyanobacteria methanogens red crinoids trilobites 1 points QUESTION 2 Earthquakes occur most frequently near __________ margins. seismic active aseismic passive 1 points QUESTION 3 Faulting in the Basin and Range province is a result of __________. volcanism igneous intrusions vertical uplift or horizontal extension seafloor spreading geosyncline 1 points QUESTION 4 In the Paleozoic era, the western edge of the North American continent grew __________ because of the accumulation of many thousands of feet of carbonates. eastward westward vertically the continent did not grow, sediment simply accumulated. 1 points QUESTION 5 When two plates composed of continental lithosphere are pulled together at a convergent boundary, the result is __________. subduction a hot spot is formed transform faulting collision and mountain formation 1 points QUESTION 6 At the close of the Paleozoic, eastern North America was attached to what is now __________. Europe and Asia China and South America India and Antarctica Africa and China Europe and Africa 1 points QUESTION 7 In California, the Basin and Range province is primarily oriented in a __________ trend. NW-to-SE NE-to-SE NW-to-SW none of the above 1 points QUESTION 8 __________ beneath the Basin and Range helps explain the extensive presence of granitic rocks within the carbonates. Subduction Crustal extension Obduction Thickening of the continental crust by "rooting" 1 points QUESTION 9 The hypothesis of __________ is used to explain the topography of the Basin and Range. subduction crustal extension decollement continental convergence 1 points QUESTION 10 Lake Tahoe is part of the __________. Basin and Range province Sierra Nevada province the Rockies The Modoc plateau province the High Rock Canyon province 1 points QUESTION 11 California went to passive to active margin about 250 millions because __________. Pangea started to break apart the Appalachians mountains started to form the Sierra Nevada formed the Rockies formed the Pacific ocean started to widen 1 points QUESTION 12 __________ is the most common type of biogenic sedimentary rock found in the Basin and Range province. Limestone Chert Phosphate rock Quartz sandstone 1 points QUESTION 13 Mono Lake is part of the __________. Sierra Nevada Basin and Range province the Rockies the Columbia plateau 1 points QUESTION 14 Most carbonate rocks can be associated with __________ and __________. warm / shallow seas cold / deep seas warm / shallow lakes hot springs cold / deep lakes 1 points QUESTION 15 Limestone reefs and salt deposits are important rocks in the reconstruction of Earth history because they __________. can be used to infer the ancient climate of the Earth; they are deposited in environments that are restricted to warm climate automatically provide age information; all such deposits occurred between 200 and 400 million years ago are deposited in warm climates today, but there is good reason to think that they were deposited in cold climates millions of years ago pinpoint the locations of old subduction zones 1 points QUESTION 16 Broad, carbonate-covered continental margin are found along __________. active margins passive margins deep-sea trenches mid-ocean ridges 1 points QUESTION 17 When did the western margin of North American become an active margin? 250 Ma ago 150 Ma ago It has always been an active margin It has always been a passive margin 1 points QUESTION 18 The Precambrian is from __________ to __________. Earth's formation to 540 Ma 540 Ma to 250 Ma 250 Ma to 65 Ma 65 Ma to now 1 points QUESTION 19 Most carbonates are __________. clastic sedimentary rocks biogenic sedimentary rocks chemical sedimentary rocks igneous rocks derived from inorganic precipitation 1 points QUESTION 20 Within the terminology of plate tectonics (and not necessarily the Basin and Range province), an active margin is __________. synonymous with subduction zone a 5-mile radius surrounding an active volcano a continental coastline that coincides with a plate boundary anywhere on Earth where earthquakes are especially frequent 1 points QUESTION 21 A good example of a present-day, passive continental margin is the __________. north flank of the East Pacific Rise west coast of South America east coast of North America west coast of North America 1 points QUESTION 22 During the deposition of the rocks found in the Basin and Range province, where was North America localized? Near the equator, rotated 90 degrees counterclockwise. Near the equator, rotated 90 degrees clockwise. It was localized where it is found today. Scientists cannot reconstruct past continent locations. 1 points QUESTION 23 A region with distinctive and characteristic geology, landforms, climate, geomorphic trends, soils and vegetation, and drainage is called a __________ region. physiographic psychiographic geologic tectonic 1 points QUESTION 24 The correct order of geological periods is, from oldest to youngest? Paleozoic, Proterozoic, Mesozoic, Cenozoic Proterozoic, Mesozoic, Paleozoic, Cenozoic Cenozoic, Proterozoic, Mesozoic, Paleozoic Proterozoic, Paleozoic, Mesozoic, Cenozoic 1 points QUESTION 25 What is the chemical formula for calcium carbonate, the major mineral in limestones? NaCl CaSO4 2H20 SiO2 Ca(CO3) 1 points QUESTION 26 The principle of superposition states that __________. the present is the key to the past undisturbed sedimentary layers get progressively younger from bottom to top a fault is younger than the rocks it cuts sediments are deposited as essentially horizontal layers 1 points QUESTION 27 Buried erosional surfaces between parallel sedimentary strata are termed ____________. unconformities conformable sedimentary contact angular unconformities nonconformities 1 points QUESTION 28 Which of the following geologic principles is a direct result of gravity? Baked contacts Inclusions Cross-cutting relationships Original horizontality 1 points QUESTION 29 Chemical substances that have exactly the same chemical formula but different crystal structures are called _______. electrons ions isotopes polymorphs 1 points QUESTION 30 Pyrite (FeS2) is in which mineral class? silicates carbonates oxides sulfides

Explanation / Answer

QUESTION 1. Stromatolites are layered structures produced by the activity of cyanobacteria

QUESTION 2 Earthquakes occur most frequently near seismic active margins.

QUESTION 3 Faulting in the Basin and Range province is a result of horizontal extension seafloor spreading

QUESTION 4 In the Paleozoic era, the western edge of the North American continent grew because of the accumulation of many thousands of feet of carbonates, sediment simply accumulated

QUESTION 5 When two plates composed of continental lithosphere are pulled together at a convergent boundary, the result is collision and mountain formation

QUESTION 6 At the close of the Paleozoic, eastern North America was attached to what is now Europe and Africa

QUESTION 7 In California, the Basin and Range province is primarily oriented in roughly north-south trend.

so none of the options are correct.

QUESTION 8 Subduction beneath the Basin and Range helps explain the extensive presence of granitic rocks within the carbonates.

QUESTION 9 The hypothesis of crustal extension is used to explain the topography of the Basin and Range.

QUESTION 10 Lake Tahoe is part of the Sierra Nevada province the Rockies

QUESTION 11 California went to passive to active margin about 250 millions because Pangea started to break apart

QUESTION 12 phosphate rock is the most common type of biogenic sedimentary rock found in the Basin and Range province.

QUESTION 13 Mono Lake is part of the Sierra Nevada Basin and Range province.

QUESTION 14 Most carbonate rocks can be associated with warm and shallow seas

QUESTION 15 Limestone reefs and salt deposits are important rocks in the reconstruction of Earth history because they  are deposited in environments that are restricted to warm climate

QUESTION 16 Broad, carbonate-covered continental margin are found along active margins

QUESTION 18 The Precambrian is from Earth's formation to 540 Ma

QUESTION 19 Most carbonates are clastic sedimentary rocks

QUESTION 20 Within the terminology of plate tectonics (and not necessarily the Basin and Range province), an active margin is synonymous with anywhere on Earth where earthquakes are especially frequent.

QUESTION 21 A good example of a present-day, passive continental margin is the east coast of North America

QUESTION 23 A region with distinctive and characteristic geology, landforms, climate, geomorphic trends, soils and vegetation, and drainage is called a  physiographic region

QUESTION 24 The correct order of geological periods is, from oldest to youngest is Proterozoic, Paleozoic, Mesozoic, Cenozoic

QUESTION 25 the chemical formula for calcium carbonate, the major mineral in limestones is Ca(CO3)

QUESTION 26 The principle of superposition states that undisturbed sedimentary layers get progressively younger from bottom to top

QUESTION 27 Buried erosional surfaces between parallel sedimentary strata are termed disconformites

QUESTION 28 Original horizontality is a direct result of gravity.

QUESTION 29 Chemical substances that have exactly the same chemical formula but different crystal structures are called polymorphs

QUESTION 30 Pyrite (FeS2) is in sulfides mineral class

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.