The rock layers have not been overturned. The fault is the same age as the top layer it cuts across. Fossils found in the rock layers are shown. Earth had oceans 4 billion years ago. 10.The diagram below represents a side view of a hill (drumlin) that was deposited by a glacier on the Atlantic coast. Scientists use the magnetic polarity of the sea floor to determine the age. In this case, C = Cambrian; O = Ordovician; S = Silurian; D = Devonian; P = Pennsylvanian. the same minerals and fossils 6.In the diagram below, letters A and B represent locations near the edge of a continent. Know more about these DNA bases in this post. The cross section below represents the bedrock structure of a section of Earth's crust. The capital letter represents the age of the geologic unit. 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. 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. When did faulting along line XY occur? (1) rigid mantle and asthenosphere (2) asthenosphere and stiffer mantle . Existed during limited periods of geologic time. Line XY represents a fault. The three cross sections of sedimentary bedrock . 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? On the diagram above, draw the 60-foot contour line. 1)1 2)2 3)3 4)4 2.Which numbered fossil best represents an index . ___12. (1)The fault is younger than all the layers it cuts across. decreasing Letters A through E identify different rock layers. Identify the letter of the choice that best completes the statement or answers the question. Lines W, X, Y, and Z are locations of unconformities. lowercase letters represent bedrock units and are patterned on .rock names commonly used by engineers. Letters W, X, Y, and Z represent fossils found in the rock layers. (correlation) b. Letters A, B, C, and D represent fossils found in the rock layers. C 5. (1) 1.4% (3) 11.9% (2) 5.0% (4) 65.0%. 26) State one characteristic, other than the horizontal bedrock structure, shown in the cross section that supports the idea that B 3. B? 41. 200. 16. The cross sections below show the surface bedrock in two different locations 20 miles apart. 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. . Number 1, 2, 3, and 4 represent fossils. D . Base your answer to the following question on the geologic cross section of bedrock shown below. The rock layers have not been overturned. A)AE and EB have the same gradient. The water from the melting glacier is flowing into a lake. Devastating Tsunami On March 11, 2011, one of the largest earthquakes ever recorded (magnitude 9.0) produced a . Letters _____ and _____ represent bedrock of the same age. (4)The fault is the same age as the bottom layer it cuts across. Which two locations in the diagram have bedrock of approximately the same age, which has been separated by seafloor spreading? The cross section represents the distance and age of ocean-floor bedrock found on both sides of the Mid-Atlantic Ridge. (3) The Taconic Mountains extend into New York State. (3) The Taconic Mountains extend into New York State. Letter A represents a location on the bottom of the lake. The cross sections below represent four widely separated bedrock outcrops labeled. (1) A and E (2) B and D (3) F and G (4) D and H 31. The numbers represent events in Earth's history. 11. The geologic time line below represents the three most recent geologic eras. granite ! 42. The zircon crystals have 98.44% of the original U-235 remaining, and 1.56% has decayed to Pb-207. slate (3) dunite (2) hornfels (4) marble 6 The geologic time line below represents the three most recent geologic eras. Letters A, B, and C are positions on the streambed where erosion and deposition data were collected. a. Cretaceous Which plate tectonics events occurred as the Iapetus Ocean closed? The cross sections below represent three widely separated outcrops of exposed bedrock. Slate and marble are commonly mined in this region. Which two letters represent bedrock of the same age? Pacific Plate Juan de Fuca Plate measuring the age of the surface bedrock. Index fossils. A) Z B) X C) W D) Y 26) What evidence suggests that a mass extinction of the dinosaurs occurred at The rock layers have not been overturned. 21 The cross sections below represent three widely separated outcrops of exposed bedrock. Geologic time is divided into specific . A mid-ocean ridge is located near position 1) A 2) E 3) C 4) D 17. 12. B 8. . The rocks have not been overturned. 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. Letters A, B, C and D represent fossils found . A) A B) B C) C D) D Which fossil appears to have the best characteristics of an index fossil? . The sequence below represents the relative ages of the rock units from oldest to youngest. The symbol for contact metamorphism has been omitted from the cross section. Line XY represents a fault. 24.Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in this cross section? When two geologic units are located next to each other, the place where they meet is called a contact. Which New York State landscape feature was formed primarily as a result of glacial deposition? Most of the bedrock is metamorphic and the region is known for its deposits of talc and asbestos. The geologic cross section below shows the geologic age of two rock layers separated by an unconformity. Which diagram below best shows how this valley might be modified after a glacier has moved through it? A)Gayle shale . [1] 84 After the glacier melts, what evidence might be found on the surface of the bedrock indicating that the Letters A through D represent locations in the lithosphere. Fossils found in the rock layers are shown. The cross sections below represent four widely separated bedrock outcrops labeled. answer choices after the intrusion of rock unit A after the deposition of rock units B, C, and D Which table best represents the locations where erosion and deposition are dominant and where an equilibrium exists between the two processes? . Base your answer to the following question on the diagram below, which represents the landscape features associated with a meandering river. Wooden stakes were placed on a glacier in a straight line as represented by A-A' in the diagram below. A and E B. Points A and B represent two spot elevations on the map. The cross sections below represent three widely separated outcrops of exposed bedrock. On the diagram above, draw the 60-foot contour line. The layers have not been overturned. shown below represent widely separated surface . 24.Two inferences . B 4. 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. Tropic of Capricorn (23 S) between 75 W and 15 E longitude. These two elements are oxygen and A. magnesium B. silicon C. iron D. lead 17. 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 . 24.Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in this cross section? What does the rock and fossil record represent? Letters A, B, C, and D represent four different marine fossils found in these rock layers. 32. Letters A through H represent rock layers. 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. Letters W, X, Y, and Z represent fossils found in the 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 . would a salt mine in Silurian-age bedrock most likely be located? The index fossil, Phacops, shown below has been found in New York State sedimentary bedrock. A)more rounded B) more dense C) heavier D) larger Which process was primarily responsible for forming the hills? Base your answers to questions 9and 10on the geologic cross section of bedrock shown below. D)The fault is the same age as the bottom layer it . A. Letters A through H represent rock units. The action of the root splitting the bedrock is an example of 23. The time line below represents the geologic history of Earth. . 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 Letters A through J represent rock units or geologic structures. An uncomformity is shown at letter X. A through G identify rock layers and Q represents a fault. Letters A through J represent rock units or geologic structures. 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 Approximately what percentage of the estimated age of Earth does the Cenozoic Era represent? During which period in geologic history did the uplifting of the Adirondack mountains begin? The geologic unit is commonly an abbreviation of a "formation" or "member" name. Letter X represents the epicenter of an earthquake determined from seismic waves recorded at all four cities. Which two letters represent bedrock of the same age? (1) A (3) C (2) B (4) D 25) Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in the cross section? Letters A through J represent rock units. Slate and marble are commonly mined in this region. has not occurred. limestone ! A Total Solar Eclipse B A B Partial Solar Eclipse . Lines W, X, Y, and Z are locations of unconformities. 27. Which two letters represent bedrock of the same age? Letters A through J represent rock units or geologic structures. 4) age of the rock layers 22. Which inference can be made from this information? 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. A geologist who compares nonsedimentary rock Most horizons and layers have a designation using one capital letter symbol; some have two. United States and indicates the age, type, and thickness of the bedrock. 32.The vesicular basalt includes zircon crystals containing the radioactive isotope U-235, which disintegrates to the stable isotope Pb-207. A. The rock units have not been overturned. D and H 200 Life forms that became index fossils lived in many areas and. 1 The photographs below show two types of solar eclipses. The cross section represents four different rock units. a. Which two letters represent bedrock of the same age? Letters A and B represent two celestial objects. D 7. The diagram below represents three bedrock outcrops. Most of the bedrock in the region is limestone and marble. . 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. A and E. B and D. F and G. D and H. The diagram below shows a geologic cross section. . 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 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 Fossils found in the rock layers are shown. Arrow A crust. 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? c. contain index fossils of the same age d. are found in the same area. The magnetic polarity of the bedrock on the west side of the ridge has been deliberately left blank. 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? Which fossil could be classi ed as an index fossil? The exposed bedrock of the wave-cut cliff is granite. shale ! to be found in bedrock of (1) Precambrian age near Mt. 1. D 2. A. Which two letters represent bedrock of the same age? Letter . B. C. D. 20. Most of the bedrock in the region is limestone and marble. " 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? 1) 3) 2) 4) 23. Explain why the type of rock changes between locations B and C. A)shallow marine B) tropical forest C) coastal plain D) interior grassland (2)The fault is older than all the layers it cuts across. Which letter best represents an index fossil? The two main types of contacts are depositional . These volcanic islands may have formed as the Pacific Plate moved over a mantle hot spot . Existed during limited periods of geologic time 200 The diagram below represents three bedrock outcrops. Which two letters represent bedrock of the same age? Letters W, X, Y, and Z represent locations on the floodplain. To prove how the dinosaurs became extinct b. Letter X represents a water-cycle process. [A check mark ( ) represents the dominant process for each lettered location.] Which two letters represent bedrock of the same age? The bedrock ages are shown in billions of years. ALL DYNAMIC CRUST CR MEGA PACKET . 10 Two inferences about the cross section . 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 rock units have not been overturned. . 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 A)20 km toward the Mid-Atlantic Ridge . answer choices A and E B and D F and G D and H Question 7 120 seconds Q. A. (4) The Valley of Vermont is a narrow valley between two mountain ranges. United States and indicates the age, type, and thickness of the bedrock. . Color . A fault is shown at letter Y. The block diagram below shows the bedrock age as measured by radioactive dating and the present location of part of the Hawaiian Island chain. (4) The Valley of Vermont is a narrow valley between two mountain ranges. Which diagram best shows the magnetic pattern and relative age of the igneous bedrock on the west side of the ridge? Very little of the sea floor is older than 150 million years. 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. 22 The cross section below represents the boundaries of the Paci c Plate, the Juan de Fuca Plate, and the North American Plate. Layers labeled with the same letter are the same age. The rock columns represent four widely separated locations, W, X, Y, and Z. 12.Identify the two volcanoes, one from each trend, that have the same age. Lichenaria Elliptocephala (2) Man (3) . 83 Describe the most likely shape of a cross section of the glacial valley as viewed from the lake. A and E B. What is the relative age of a fault that cuts across many rock layers? D 6. (Modified from NYS Regents diagrams). knowledge of Earth science. (3)The fault is the same age as the top layer it cuts across. 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. Points A and B represent two spot elevations on the map. How do scientists use the fossil record? The tectonic plates are constantly in motion and new surfaces are always being created. 1)tan sandstone 2)gray limestone 3)green shale 4)black shale 1.Which rock layer is the oldest? b. A through G identify rock layers and Q represents a fault. A and E B. Letters A, B, C and D represent fossils found in the rock layers. This is because the oldest sea floor is subducted under other plates and replaces by new surfaces. 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. Letters A through D represent different rock units. Letter X represents a water-cycle process. According to the ESRT, the distance between North America and Europe is. 15.The diagram below shows the bedrock structure beneath a series of hills. D and H. 200. 25) Which New York State landscape region has surface bedrock of the same geologic age as the surface bedrock shown in the cross section? Which two letters represent bedrock of the same age? Marcy (2) Cretaceous age on Long Island (3) Cretaceous age northwest of 20 21. . 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 The numbers show the age of the sea oor, in millions of years, at locations on the Paci c Plate. 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. Page 2 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 . (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 . D)CE and AE have the . 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. Letter A represents a location on a plate boundary. Which two letters represent bedrock of the same age? O Horizons or Layers . 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 Which two letters represent bedrock of the same age? 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. increasing C. remaining the same . Major fossils contained within each . 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. The same stakes 4. The transition periods are denoted with two capital letters in the abbreviation. Answer Key Earth's History 2012 1. which represents an outcrop of various types of bedrock and bedrock features in Colorado. . 13. Letters A through E are reference points. Base your answer(s) to the following question(s) on the cross section below which shows a portion of Earth's crust. Rock layers B, C, and Dformed during the Devonian Period. A. 30. The observer finds the age of the surface bedrock to. 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. The letters A, B, C and X, Y, Z represent missing labels. All rock layers are sedimentary. 1 During which two geologic time periods did most of the surface bedrock of the Taconic Mountains. No overturning has occurred. 12 10 8 6 4 2. Base your answer to the following question on the cross section below, which shows the bedrock structure of a portion of the lithosphere. C)CE has a steeper gradient than ED. A. and . Which two letters represent bedrock of the same age? The graph below shows the radioactive decay of a 50-gram sample of a radioactive isotope. The dashed lines connect points of the same age. 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. The rocks have not been overturned. Letters A, B, C, and D represent specific times in Earth's history. Which two letters represent bedrock of the same age? The diagram below represents a stream valley. 9. (1) 44 N 76 W (3) 43 N 77 W (2) 44 N 74 W (4) 41 N 72 W 3. a. index fossils c. the Age of Reptiles b. geologic time d. the Age of Mammals 2. X. The cross section below represents four dierent rock units. Base your answers to questions 28 and 29 on the diagram below, which represents a scheme for classifying rocks. Letters A through D represent different rock units. The bedrock ages are shown in billions of years. sandstone A. B and D C. F and G D. D and H 19. a . The symbol for contact metamorphism has been omitted from the cross section. D)The boulders were transported and deposited on the limestone bedrock by a glacier. The lower-case letters represent the name of the specific bedrock formation, which is not spelled . Base your answers to questions 12 and 13 on the block diagrams below, which represent three widely separated outcrops. Most of the bedrock is metamorphic and the region is known for its deposits of talc and asbestos. The unconformities shown in the cross section represent (1) buried erosional surfaces Which fossil could best be used as an index fossil? The lower-cased letters indicate the geologic unit's name or the type of rock of which it is comprised. Earth has sedimentary bedrock of marine origin that is 4 billion years old. 26) State one characteristic, other than the horizontal bedrock structure, shown in the cross section that supports the idea that (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? Letters A through E identify different rock layers. Which letter best represents an index fossil? According to the graph, what is the half-life of this isotope? 21. . B and D C. F and G D. D and H 16. The unconformity at the bottom of the Silurian rock layer indicates a gap in the geologic time record. 1) Adirondack Mountains These letters are the base symbols to which other characters are added to complete the designations. Rock layers are labeled l, . Life forms that became index fossils lived in many areas and. 27 The cross section below represents rock units within Earth's crust. contain index fossils of the same age (4) are found in the same area. . The map shows the generalized ages of surface bedrock of Iceland . 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. Letters A through G represent locations on the Earth's crust. If bedrock at a collisional plate boundary contains andalusite crystals, these crystals are changed into sillimanite and/or kyanite as temperature and pressure conditions . Which two celestial objects are represented by letters . X. represents a location on the ocean oor surface. A and E B. Letter A represents the angle of tilt of Earth's rotational axis. The diagram below represents three bedrock outcrops. Elevations are in feet. 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 exposures of layers that contain fossils. Which other index fossil could also be found in New York State bedrock of the same age? Some of the data have been omitted. A and E. B and D. F and G. D and H. The diagram below shows a geologic cross section. The capital letters represent the period in which the layers were formed. B)AE has a steeper gradient than EB. bacteria can or harmful. 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 . Contact and fault lines. A)early flowering plant B)early human C)early reptile D)early dinosaur 12.Layer I is of Permian age. LettersAthroughEidentify di erent rock layers. Which other index fossil could also be found in New York State bedrock of the same age? C)Older igneous and metamorphic bedrock that once covered the limestone eroded away, forming the boulders. A B H D E 00 0 0:00 SD G Cicos Which two letters represent bedrock of the same age? two interior Earth layers?