PB Nitom Blog Very little of the sea floor is older than 150 million years. Letter X represents a water-cycle process. Letters A through D represent different rock units. Page 2 The bedrock ages are shown in billions of years. granite ! Fossils found in the rock layers are shown. 1 The photographs below show two types of solar eclipses. A. Letters A through E identify different rock layers. 21. A geologist who compares nonsedimentary rock 12. This hill is most likely composed of 11.Base your answer to the following question on the diagram below, which represents a shoreline with waves approaching at an angle. D)The boulders were transported and deposited on the limestone bedrock by a glacier. D . Based on the theory of plate tectonics, it is inferred that over the past 250 million years North America has moved toward (1) northwest (2) sout west (3) southeast (4) northeast 20 New (4) Ordovician age near (1)The fault is younger than all the layers it cuts across. The diagram below represents three bedrock outcrops. . Letters A through G represent locations on the Earth's crust. 1)1 2)2 3)3 4)4 2.Which numbered fossil best represents an index . shale ! B and D C. F and G D. D and H Base your answer (s) to the following question (s) on the cross section below which shows a portion of Earth's crust. shown below represent widely separated surface . O Horizons or Layers Which two letters represent bedrock of the same age? Slate and marble are commonly mined in this region. measuring the age of the surface bedrock. (1) A (3) C (2) B (4) D D)CE and AE have the . A)schist B)anthracite coal C)marble D)slate 28.If the rock in circle C formed from limestone, it would be called A)origin B)density C)color D)age C)Older igneous and metamorphic bedrock that once covered the limestone eroded away, forming the boulders. Letters _____ and _____ represent bedrock of the same age. The lower-case letters represent the name of the specific bedrock formation, which is not spelled . Letters A, B, C and D represent fossils found . B and D C. F and G D. D and H Base your answer(s) to the following question(s) on the cross section below which shows a portion of Earth's crust. The cross section represents four different rock units. (1) A and E (2) B and D (3) F and G (4) D and H Which other index fossil could also be found in New York State bedrock of the same age? Cretaceous Which plate tectonics events occurred as the Iapetus Ocean closed? Which two letters represent bedrock of the same age? Letter X represents the epicenter of an earthquake determined from seismic waves recorded at all four cities. The rocks have not been overturned. The numbers show the age of the sea fl oor, in millions of years, at locations on the Pacifi c Plate. would a salt mine in Silurian-age bedrock most likely be located? The cross section below represents four di²erent rock units. . 15.The diagram below shows the bedrock structure beneath a series of hills. A) Z B) X C) W D) Y 26) What evidence suggests that a mass extinction of the dinosaurs occurred at United States and indicates the age, type, and thickness of the bedrock. During which period in geologic history did the uplifting of the Adirondack mountains begin? The two main types of contacts are depositional . a. D 6. A fault is shown at letter Y. A)Gayle shale . Existed during limited periods of geologic time 200 The diagram below represents three bedrock outcrops. 25) Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in the cross section? but the same age as the granite bedrock (2) older than the sandstone and the granite bedrock (3) younger than the sandstone, but the same age as the granite bedrock . Lines W, X, Y, and Z are locations of unconformities. Transcribed image text: The cross sections below represent two widely separated bedrock outcrops, 1 and 2. Letters A, B, C, and D identify some rock layers. Most of the bedrock is metamorphic and the region is known for its deposits of talc and asbestos. crust. The block diagram below shows the bedrock age as measured by radioactive dating and the present location of part of the Hawaiian Island chain. Lichenaria Elliptocephala (2) Man (3) . Letters A, B, C, and D represent specific times in Earth's history. 32.The vesicular basalt includes zircon crystals containing the radioactive isotope U-235, which disintegrates to the stable isotope Pb-207. exposures of layers that contain fossils. B 4. Most of the bedrock is metamorphic and the region is known for its deposits of talc and asbestos. 27. A. and . Letters A through H represent rock units. Letter A represents the angle of tilt of Earth's rotational axis. (1) 44° N 76° W (3) 43° N 77° W (2) 44° N 74° W (4) 41° N 72° W 3. Letter A represents a location on the bottom of the lake. B 3. Which diagram best shows the magnetic pattern and relative age of the igneous bedrock on the west side of the ridge? sandstone A. The rock columns represent four widely separated locations, W, X, Y, and Z. The three cross sections of sedimentary bedrock . Base your answer to the following question on the diagram below, which represents the landscape features associated with a meandering river. A. The ages shown on the map suggest that the (1) oldest bedrock is located in the Churchill formation (2) youngest bedrock is located in the Wyoming formation (3) younger bedrock has been added to the east and west coasts of the continent (4) age of bedrock increases from west to east across the . The sequence below represents the relative ages of the rock units from oldest to youngest. Which two celestial objects are represented by letters . A and E. B and D. F and G. D and H. The diagram below shows a geologic cross section. An uncomformity is shown at letter X. A)more rounded B) more dense C) heavier D) larger . Which process was primarily responsible for forming the hills? Which characteristic is most useful in correlating Devonian-age sedimentary bedrock in New York State with Devonian-age sedimentary bedrock in other parts of the world? 24.Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in this cross section? The tectonic plates are constantly in motion and new surfaces are always being created. A. 27 The cross section below represents rock units within Earth's crust. a)life has not changed significantly throughout earth's history b)life has evolved from complex to simple forms c)many organisms that lived on earth have become extinct d)mammals developed early in the precambrian time period 64.based on fossil evidence, most scientists infer that a)occur at regular time intervals b)spread over a large area in a … two interior Earth layers? Geologic time is divided into specific . The rock layers have not been overturned. B 8. Number 1, 2, 3, and 4 represent fossils. The geologic unit is commonly an abbreviation of a "formation" or "member" name. Letters A, B, C and D represent fossils found in the rock layers. . 24.Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in this cross section? 32. ALL DYNAMIC CRUST CR MEGA PACKET . Scientists use the magnetic polarity of the sea floor to determine the age. (1) rigid mantle and asthenosphere (2) asthenosphere and stiffer mantle . Fossils found in the rock layers are shown. The rocks have not been overturned. On the diagram above, draw the 60-foot contour line. The dashed lines connect points of the same age. The action of the root splitting the bedrock is an example of 23. to be found in bedrock of (1) Precambrian age near Mt. Letters W, X, Y, and Z represent locations on the floodplain. Most of the bedrock in the region is limestone and marble. Letters A through D represent different rock units. Which table best represents the locations where erosion and deposition are dominant and where an equilibrium exists between the two processes? The capital letter represents the age of the geologic unit. 16.Base your answer to the following question on the data table below, which gives information collected at seismic stations W, X, Y, and Z for the same earthquake. Life forms that became index fossils lived in many areas and. Which New York State landscape feature was formed primarily as a result of glacial deposition? (4) The Valley of Vermont is a narrow valley between two mountain ranges. The geologic cross section below shows the geologic age of two rock layers separated by an unconformity. The capital letters represent the period in which the layers were formed. 12 The bedrock of the Adirondack Mountains was formed mainly by the (1) cementation of clastic sediments and precipitates from seawater (2) compaction and recrystallization of volcanic material (3) regional metamorphism of sedimentary and igneous rocks (4) contact metamorphism of unconsolidated gravels 13 Which element, found in both biotite . 25) Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in the cross section? 16. X. The capital letters O, L, V, A, E, B, C, R, M, and W represent the master horizons and layers of soils. (1) 45° W (3) 75° W (2) 45° E (4) 75° E 4. The observer finds the age of the surface bedrock to. Which fossil could best be used as an index fossil? (3) The Taconic Mountains extend into New York State. 1) 3) 2) 4) 23. c. contain index fossils of the same age d. are found in the same area. Which two letters represent bedrock of the same age? The rock layers have not been overturned. The cross sections below represent four widely separated bedrock outcrops labeled. D 7. 1)tan sandstone 2)gray limestone 3)green shale 4)black shale 1.Which rock layer is the oldest? Letters A through E identify different rock layers. The rock units have not been overturned. The index fossil, Phacops, shown below has been found in New York State sedimentary bedrock. Most of the bedrock in the region is limestone and marble. Some of the data have been omitted. B? Base your answers to questions 28 and 29 on the diagram below, which represents a scheme for classifying rocks. Base your answers to questions 12 and 13 on the block diagrams below, which represent three widely separated outcrops. Elevations are in feet. The numbers represent events in Earth's history. . The cross section below represents the bedrock structure of a section of Earth's crust. 30. A)20 km toward the Mid-Atlantic Ridge . 41. [A check mark ( ) represents the dominant process for each lettered location.] The magnetic polarity of the bedrock on the west side of the ridge has been deliberately left blank. 26) State one characteristic, other than the horizontal bedrock structure, shown in the cross section that supports the idea that Which two letters represent bedrock of the same age? The unconformities shown in the cross section represent (1) buried erosional surfaces . B and D C. F and G D. D and H 16. If Early Pleistocene mermaids had existed, their fossil remains would be the same age as fossils of A) trilobites B) mastodonts C) dinosaurs D) armored fish ____25. Letter A represents a location on a plate boundary. (4) The Valley of Vermont is a narrow valley between two mountain ranges. Which inference can be made from this information? Explain why the type of rock changes between locations B and C. A)shallow marine B) tropical forest C) coastal plain D) interior grassland A and E B. The time line below represents the geologic history of Earth. X. represents a location on the ocean fl oor surface. The diagram below represents three bedrock outcrops. The letters A, B, C and X, Y, Z represent missing labels. Existed during limited periods of geologic time. The layers have not been overturned. 12.Identify the two volcanoes, one from each trend, that have the same age. D and H. 200. Rock layers are labeled l, . limestone ! A B H D E 00 0 0:00 SD G Cicos Which two letters represent bedrock of the same age? has not occurred. The rock units have not been overturned. A and E B. [1] 84 After the glacier melts, what evidence might be found on the surface of the bedrock indicating that the Which two letters represent bedrock of the same age? When two geologic units are located next to each other, the place where they meet is called a contact. The symbol for contact metamorphism has been omitted from the cross section. The map shows the generalized ages of surface bedrock of Iceland . D)The fault is the same age as the bottom layer it . 10.The diagram below represents a side view of a hill (drumlin) that was deposited by a glacier on the Atlantic coast. B. C. D. 20. Letter X represents a water-cycle process. The same stakes Most horizons and layers have a designation using one capital letter symbol; some have two. Index fossils. 21 The cross sections below represent three widely separated outcrops of exposed bedrock. . (correlation) b. 4. Line XY represents a fault. Which two letters represent bedrock of the same age? Letters A through H represent rock layers. Which two letters represent bedrock of the same age? The bedrock ages are shown in billions of years. Wooden stakes were placed on a glacier in a straight line as represented by A-A' in the diagram below. 1) Adirondack Mountains These letters are the base symbols to which other characters are added to complete the designations. b. the same minerals and fossils 6.In the diagram below, letters A and B represent locations near the edge of a continent. A)early flowering plant B)early human C)early reptile D)early dinosaur 12.Layer I is of Permian age. 1studying the life spans of present-day animals 2radioactive dating of metamorphic rock 3correlating widespread igneous ash deposits 4examining fossils preserved in the rock record 16.Much of the evidence for the evolution of lifeforms on Earth has been obtained by 1addition of free oxygen to Earth's atmosphere Points A and B represent two spot elevations on the map. A and E B. Slate and marble are commonly mined in this region. The water from the melting glacier is flowing into a lake. To prove how the dinosaurs became extinct b. Letters A, B, C, and D represent four different marine fossils found in these rock layers. Earth has sedimentary bedrock of marine origin that is 4 billion years old. Major fossils contained within each . 9. B and D C. F and G D. D and H 19. Which letter best represents an index fossil? 12 10 8 6 4 2. The cross sections below represent four widely separated bedrock outcrops labeled. Answer Key Earth's History 2012 1. In mathematics, a base or radix is the number of different digits or combination of digits and letters that a system of counting uses to represent numbers. When the time of day for a certain ship at sea is 12 noon, the time of day at the Prime Meridian (0° longitude) is 5 p.m. What is the ship's longitude? Base your answer to the following question on the geologic cross section of bedrock shown below. bacteria can or harmful. These volcanic islands may have formed as the Pacific Plate moved over a mantle hot spot . There are two parts to a geologic unit label: the capital letters at the beginning which represent the geologic age; and the lower case letters at the end which represent the geologic unit. Layers labeled with the same letter are the same age. 13. Base your answers to questions 9and 10on the geologic cross section of bedrock shown below. (4)The fault is the same age as the bottom layer it cuts across. 46.Base your answer to the following question on the contour map below, which shows a hill formed by glacial deposition near Rochester, New York. Line XY represents a fault. . Which two letters represent bedrock of the same age? Which two letters represent bedrock of the same age? lowercase letters represent bedrock units and are patterned on .rock names commonly used by engineers. 26) State one characteristic, other than the horizontal bedrock structure, shown in the cross section that supports the idea that Color . 11. Letters A and B represent two celestial objects. A)A and E B)B and D C)F and G D)D and H Which two letters represent bedrock of the same age? 24.Two inferences . 17.The cross section below represents large boulders made of granite, gneiss, and quartzite that are found lying on limestone bedrock near Oswego, New York. Base your answers to questions 36 through 38 on the graph below, which shows the crustal temperature and pressure conditions under which three different minerals with the same chemical composition (Al 2 SiO 5) crystallize. a. Earth had oceans 4 billion years ago. On the diagram above, draw the 60-foot contour line. 4) age of the rock layers 22. The surface bedrock of the Tug Hill Plateau landscape region is mostly composed of 1) igneous rock of Silurian age 2) sediments of Tertiary age 3) metamorphic rock of Precambrian age 4) sedimentary rock of Ordovician age 28. Which fossil could be classi ed as an index fossil? Know more about these DNA bases in this post. knowledge of Earth science. Letters A, B, and C are positions on the streambed where erosion and deposition data were collected. The lower-cased letters indicate the geologic unit's name or the type of rock of which it is comprised. Letters A through D represent locations in the lithosphere. (1) A and E (2) B and D (3) F and G (4) D and H 31. The fault is the same age as the top layer it cuts across. Base your answer(s) to the following question(s) on the cross section below which shows a portion of Earth's crust. C)CE has a steeper gradient than ED. 42. Which diagram below best shows how this valley might be modified after a glacier has moved through it? How do scientists use the fossil record? No overturning has occurred. Approximately what percentage of the estimated age of Earth does the Cenozoic Era represent? contain index fossils of the same age (4) are found in the same area. " 1)A and E 2)B and D 3)F and G 4)D and H 31.Which two letters represent bedrock of the same age? A through G identify rock layers and Q represents a fault. Letters A through J represent rock units. Contact and fault lines. LettersAthroughEidentify di erent rock layers. The cross sections below represent three widely separated outcrops of exposed bedrock. The geologic time line below represents the three most recent geologic eras. A. A and E. B and D. F and G. D and H. The diagram below shows a geologic cross section. Letter . The exposed bedrock of the wave-cut cliff is granite. Letters A, B, C, and D represent fossils found in the rock layers. A and E B. Which two locations in the diagram have bedrock of approximately the same age, which has been separated by seafloor spreading? Base your answers to questions 23 and 24 on the cross section below which shows letters A through H represent rock units in which overturning has not occurred. Base your answer(s) to the following question(s) on the Earth Science Reference Tables, the cross section below, and your knowledge of Earth science. A mid-ocean ridge is located near position 1) A 2) E 3) C 4) D 17. United States and indicates the age, type, and thickness of the bedrock. which represents an outcrop of various types of bedrock and bedrock features in Colorado. Tropic of Capricorn (23½º S) between 75º W and 15º E longitude. (1) 1.4% (3) 11.9% (2) 5.0% (4) 65.0%. The zircon crystals have 98.44% of the original U-235 remaining, and 1.56% has decayed to Pb-207. Devastating Tsunami On March 11, 2011, one of the largest earthquakes ever recorded (magnitude 9.0) produced a . (3)The fault is the same age as the top layer it cuts across. 10 Two inferences about the cross section . Letters A through E are reference points. According to the graph, what is the half-life of this isotope? Fossils found in the rock layers are shown. . a. index fossils c. the Age of Reptiles b. geologic time d. the Age of Mammals 2. 83 Describe the most likely shape of a cross section of the glacial valley as viewed from the lake. If bedrock at a collisional plate boundary contains andalusite crystals, these crystals are changed into sillimanite and/or kyanite as temperature and pressure conditions . What is the relative age of a fault that cuts across many rock layers? The ages shown on the map suggest that the (1) oldest bedrock is located in the Churchill formation (2) youngest bedrock is located in the Wyoming formation (3) younger bedrock has been added to the east and west coasts of the continent (4) age of bedrock increases from west to east across the . Which two letters represent bedrock of the same age? answer choices after the intrusion of rock unit A after the deposition of rock units B, C, and D Letters A through J represent rock units or geologic structures. The cross sections below show the surface bedrock in two different locations 20 miles apart. (3) The Taconic Mountains extend into New York State. 1 During which two geologic time periods did most of the surface bedrock of the Taconic Mountains. Rock layers B, C, and Dformed during the Devonian Period. Arrow A Identify the letter of the choice that best completes the statement or answers the question. A is younger than C, because the intrusion of A metamorphosed part of rock layer C. c. A is older than C, because A has older index fossils. What does the rock and fossil record represent? 25) The cross sections below represent three widely separated bedrock outcrops labeled A, B, and C. Letters W, X, Y, and Z represent fossils found in the rock layers. Which letter best represents an index fossil? Which two letters represent bedrock of the same age? All rock layers are sedimentary. The rock layers have not been overturned. (1) A-Moon; B-Sun (3) A-Sun; B-Moon (2) A-Moon; B-Earth (4) A-Sun; B-Earth 2 Compared to the terrestrial planets, the . A Total Solar Eclipse B A B Partial Solar Eclipse . The unconformity at the bottom of the Silurian rock layer indicates a gap in the geologic time record. (Modified from NYS Regents diagrams). The letter symbols used on the map and cross section are derived from the soil and rock symbols listed below: c, clay m, silt s, sand g, gravel c, cobbles b, boulders cs, claystone sh, shale ms, siltstone ss, sandstone cgl, conglomerate . a . Granite inclusions Granite bedrock Sandstone The age of the granite that makes up the inclusions is most likely (1) older than the sandstone, but the same age as the granite bedrock (2) older than the sandstone and the granite bedrock A)Permian and Paleogene B)Ordovician and Cretaceous C)Ordovician and Cambrian D)Triassic and Jurassic 36.In New York State there are no rocks of the following ages Created Date 20160606183353Z 1)erosion of overlying sediments 2)contact metamorphism 3)the collision of lithospheric plates 4)the extrusion of igneous rock 32.The folding of rock layers G through C was most likely . Marcy (2) Cretaceous age on Long Island (3) Cretaceous age northwest of 20 21. . increasing C. remaining the same . The cross section represents the distance and age of ocean-floor bedrock found on both sides of the Mid-Atlantic Ridge. . B)AE has a steeper gradient than EB. A) A B) B C) C D) D Which fossil appears to have the best characteristics of an index fossil? Letters W, X, Y, and Z represent fossils found in the rock layers. The diagram below represents a stream valley. slate (3) dunite (2) hornfels (4) marble 6 The geologic time line below represents the three most recent geologic eras. Base your answer to the following question on the cross section below, which shows the bedrock structure of a portion of the lithosphere. 1. The symbol for contact metamorphism has been omitted from the cross section. Letters W, X, Y, and Z represent fossils found in the rock layers. Which other index fossil could also be found in New York State bedrock of the same age? In this case, C = Cambrian; O = Ordovician; S = Silurian; D = Devonian; P = Pennsylvanian. decreasing The graph below shows the radioactive decay of a 50-gram sample of a radioactive isotope. . Letters A through J represent rock units or geologic structures. Which other index fossil could also be found in New York State bedrock of the same age? Which two letters represent bedrock of the same age? The cross sections below represent three widely separated outcrops of exposed bedrock. This is because the oldest sea floor is subducted under other plates and replaces by new surfaces. Pacific Plate Juan de Fuca Plate According to the ESRT, the distance between North America and Europe is. 22 The cross section below represents the boundaries of the Pacifi c Plate, the Juan de Fuca Plate, and the North American Plate. D 2. (2)The fault is older than all the layers it cuts across. 200. Points A and B represent two spot elevations on the map. Letters A through J represent rock units or geologic structures. C 5. These two elements are oxygen and A. magnesium B. silicon C. iron D. lead 17. 23.On the cross section above, draw two arrows, one on each side of fault X, to show the relative direction of movement of the rock units that occurred during faulting. A through G identify rock layers and Q represents a fault. answer choices A and E B and D F and G D and H Question 7 120 seconds Q. A)AE and EB have the same gradient. D and H 200 Life forms that became index fossils lived in many areas and. The transition periods are denoted with two capital letters in the abbreviation. ___12. A. d. A is older than C, because the intrusion of A cuts across rock layer C. Samples of plant pollen are preserved in sediment deposited by the last glacial ice sheet. When did faulting along line XY occur? . Lines W, X, Y, and Z are locations of unconformities.
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