The diagram represents a geological cross-section. In which location is a geologist most likely to find a rock composed of intergrown crystals?

The photograph shows the intergrown crystals of a pegmatite rock. Which characteristic provides the best evidence that the pegmatite solidified underground?

In which group do the rocks usually have the mineral quartz as part of their composition?

The table shows the physical properties of nine minerals. Which mineral is commonly found in granite?

Large crystal grains in an igneous rock are an indication that the crystals formed

Biotite mica and muscovite mica have different chemical compositions. Compared to the agma from which biotite mica forms, the magma from which muscovite mica forms is usually...

Which statement best describes the formation of an intrusive igneous rock?

The diagram shows a surface and a cross-sectional view of a portion of Earth 15 km from a mountain range.Which characteristic of the granite boulder would furnish the greatest amount of information about the environment in which the granite solidified?

Base your answer to the question on the cross-section below. Rock units are labeled 1-8. The line between A and A' indicates a conformity. Which characteristic of the granite intrusion provides the most evidence that it solidified deep underground?

Analysis of a granite pebble would probably show that the pebble consists mostly of...

Base your answer on the geological cross-section. The large cone-shaped mountain on Earth's surface is a volcano. Letters A, B, and C represent certain rocks. Rock B is most likely which type of igneous rock?

Base your answer to the question on the map. The triangle represents Mt. Hekla, a volcano in Iceland. The isolines represent the thickness of ash, in cm, that settles on Earth's surface after a volcanic eruption of Mt. Hekla. Point X is a location on the surface of ash. In addition to the ash, solid rock formed on Mt. Hekla from the lava extruded during this eruption. The rock is most likely...

Base your answer to the question on the map of Iceland, a country located on the Mid-Atlantic Ridge. Four locations are represented by the letters A through D. The fine-grained texture of most of the igneous rock formed on the surface of Iceland is due to...

The best evidence for determining the cooling rate of an igneous rock during its solidification is provided by...

Which rock most likely formed directly from lava cooling quickly at Earth's surface?

Base your answer to the question on the flowchart below and on your knowledge of Earth science. The flow chart shows the formation of some igneous rocks. The circled letters A, B, C, and D indicate parts of the flowchart that have not been labeled. Give the numerical grain size range that should be places in the flowchart at C.

Base your answer to the question on the geological cross section. Location A is within the metamorphic rock. The metamorphic rock at location A is most likely...

Which mineral is commonly found in the three metamorphic rocks slate, schist, and gneiss?

The diagram represents 5 rock samples. If granite were subjected to intense heat and pressure, it would most likely change to...

The diagram shows a cross section through a portion of Earth's crust. Rock found in the zone between A and B is nonfoliated and fine grained. The rock is most likely...

Which group of elements is listed in increasing order based on the percent by mass in Earth's crust?

Wavy bands of dark and light minerals visible in gneiss bedrock probably formed form the...

The rock shown has a foliated texture and contains the minerals amphibole, quartz, and feldspar arranged in coarse-grained bands. Which rock is shown?

Base your answer to the question on the geologic cross section. Radioactive dating indicates the the granite intrusion is 170 million years old and the vesicular basalt is 260 million years old. The rock layers have not been overturned. The granite intrusion caused part of the limestone layer to undergo metamorphism. What metamorphic rock would most likely be found in this zone of contact metamorphism? (2 answers)

Which rock is formed only by regional metamorphism?

Base your answer to this question on the cross section. Rock units are labeled 1-8. The line between A and A' indicates a conformity. Which rock most likely formed in the contact metamorphic zone with rock unit 6?

Base your answer on the geological cross section below. The rock layers haven't been overturned. Point A is located in the zone of contact metamorphism. Which metamorphic rock most likely formed at point A? (2 answers)

While a geology student was walking along several outcrops, she found a rock specimen that showed the following characteristics: grain size-coarse / texture-foliated / composition-quartz, feldspar, amphibole, garnet, pyroxene. This specimen should be identified as...

This diagram represents a geological cross-section. At which location would quartzite most likely be found?

Base your answer to the question on the block diagrams of 4 rock outcrops, A, B, C, and D, located within 15 km of each other. The rock layers haven't been overturned. By which process was the quartzite formed?

This diagram represents a rock with a distorted layer structure. The distorted structure of this rock is most likely the result of...

Base your answer on the geologic cross section of bedrock. A through G identifies rock layers and Q represents a fault. Lines W, X, Y, and Z are locations of unconformities. The rocks haven't been overturned. Which rock most likely formed in the zone of contact between rock E and rock F?

Which rock sample is most likely a foliated metamorphic rock?

During the intrusion of the Palisades Sill, contact metamorphism changed sandstone and shale into...

The diagram shows a rock with deformed structure and intergrown crystals. The rock was probably formed by...

The diagram shows the structure of a student-developed chart fro identifying some rock samples. The circles laved Choice 1 through Choice 4 represent decision making steps leading to either path a or path b. Choice 5 hasn't been completed. Which rock specimen should lead the student to Choice 4, path a?

Silicate minerals contain the elements silicon and oxygen. Which list contains only silicate minerals?

Base your answer on the diagram, which shows 3 minerals with different physical tests, A, B, and C, being performed on them. Which sequence correctly matches each test, A, B, and C, with the mineral properly tested?

Which is a coarse-grained, igneous rock composed of mainly pyroxene, plagioclase feldspar, and olivine?

Base your answer to the question on the map, which shows certain areas where certain minerals were mined in significant amounts during 1989. The gypsum deposits in New York State were formed...

Which of the following statements is not true about the mineral hematite?

Base your answer to the question on the two tables below and your knowledge of Earth science. Table 1 shows the composition, hardness, and average density of 4 minerals often used as gemstones. Table 2 lists the minerals in Moh's Scale of Hardness from 1 (softest) to 10 (hardest). Sapphire is a gemstone variety of which mineral on Moh's Scale of Hardness?

Base your answer to the question on the Properties of Common Minerals chart in the Earth Science Reference Tables. Which statement about the minerals plagioclase feldspar, gypsum, biotite mica, and talc can best be inferred from the chart?

Base your answer to the question on the two tables below and your knowledge of Earth science. Table 1 shows the composition, hardness, and average density of 4 minerals often used as gemstones. Table 2 lists the minerals in Moh's Scale of Hardness from 1 (softest) to 10 (hardest). Which gemstone minerals contain the two most abundant elements by mass in Earth's crust?

Which property is most useful in distinguishing pyroxene from amphibole?

The diagram shows 4 mineral samples, each having approximately the same mass. If all samples are placed together in a closed, dry container and shaken vigorously for 10 minutes, which mineral sample would experience the most abrasion?

The diagram shows the index of Moh's Hardness Scale compared with the hardness of some common objects. Which statement is best supported by the diagram?

The table shows the physical properties of 9 minerals. Which mineral has a different color in its powdered form than in its original form?

The internal atomic structure of a mineral most likely determines the mineral's...

Base your answer to the question on the photographs and news article. "FRANCONIA N.H. - Crowds of visitors were drawn to Franconia Notch on Sunday to mourn the loss of New Hampshire's well known symbol - the Old Man of the Mountain granite profile. The 700-ton natural formation was just a pile of rocks after breaking loose from its 1,200-foot-high mountain perch. It was unclear when the outcropping fell because clouds had obscured the area Thursday and Friday; a state park trail crew discovered the collapse Saturday morning. The famous mountain's history dates millions of years. Over time, nature carved out a 40-foot-tall profile resembling an old man's face, and it eventually became New Hampshire's most recognizable symbol."

The rock of the Old Man of the Mountain most likely includes a mineral with a composition of...

The photograph shows a broken piece of the mineral calcite. The calcite breaks in smooth, flat surfaces because calcite...

Which diagram best represents the model of a silicon-oxygen tetrahedron?

Base your answer to the question o the graph, which shows the crustal temperature and pressure conditions under which 3 different minerals with the same chemical composition (Al2SiO5) crystallize. Which mineral has a chemical composition most similar to andalusite, sillimanite, and kyanite?

Which physical characteristic best describes the rock pyllite?

The relative hardness of a mineral can be determined by...

The diagram represents top and side views of the silicate tetrahedron. Which element combines with oxygen to form the tetrahedron?

Base your answer to the question on the diagram, which represents a part of the rock cycle.The igneous rock, granite, and the characteristics of sedimentary rock X and metamorphic rock Y are shown. Identify metamorphic rock Y.

Rocks are classified as igneous, sedimentary, or metamorphic based primarily on their...

Some nonsedimentary rocks are formed as a result of...

The diagram represents geological processes that act continuously on Earth to form different kinds of rocks. Which table correctly identifies each rock type?

Which 2 rocks have the most similar chemical composition?

Which common rock is formed from the solidification of molten material?

The diagrams represent cross sections of 4 rock samples. Each cross section illustrates the sediments, minerals, or structural appearance of the rock samples. Which sample is most likely monominerallic?

Which statement is best supported by the information provided in the reference diagram in Rock Cycle of Earth's Crust?

Base your answer to the question on the cross sections of 3 rock outcrops, A, B, and C. Line XY represents a fault. Overturning hasn't occurred in the outcrops. Which processes were primarily responsible for the formation of most of the rock outcrop in A?

Which is an accurate statement about rocks?

The diagram shows the structure of a student-developed chart fro identifying some rock samples. The circles laved Choice 1 through Choice 4 represent decision making steps leading to either path a or path b. Choice 5 hasn't been completed. Before the student can choose either path a or path b at Choice 1, the student must make a decision about...

The diagram shows the structure of a student-developed chart fro identifying some rock samples. The circles laved Choice 1 through Choice 4 represent decision making steps leading to either path a or path b. Choice 5 hasn't been completed. The chart is best described as...

The diagram represents 5 rock samples. The basalt was most likely formed by...

The diagram shows the structure of a student-developed chart fro identifying some rock samples. The circles laved Choice 1 through Choice 4 represent decision making steps leading to either path a or path b. Choice 5 hasn't been completed. At Choice 2, the student should generally choose path a if the student observes...

In which set are the rock drawings labeled with their rock types?

Base your answer to the question on the diagram, which represents a part of the rock cycle.The igneous rock, granite, and the characteristics of sedimentary rock X and metamorphic rock Y are shown. Identify sedimentary rock X.

The diagrams show how plant materials are changed into the 3 forms of coal by natural processes. By which process is anthracite coal formed from bituminous coal?

When granite melts and then solidifies, it becomes...

The diagrams represent 5 different rock samples. What do the 5 samples have in common?

Rocks can be classified as sedimentary, igneous, or metamorphic based primarily upon differences in...

Which rock type most often contains fossils?

A student classified the rock as sedimentary. Which observation about the rock best supports this classification?

Which kind of bedrock would most likely contain fossils?

Base your answer to the question on the diagrams. Diagram 1 is a drawing of a seafloor environment during the Carboniferous Period. Diagram 2 is a drawing of a Carboniferous swamp-forest environment. Two organisms are labeled A and B. In which type of rock would fossils of organisms A and B most likely be found?

Base your answer to the question on the drawings of 6 sedimentary rocks labeled A-F. Most of the rocks were formed by...

Which type of surface bedrock is commonly found in New York State between Elmira and Ithica?

The diagram represents a scheme for classifying rocks. The letters A, B, C, and X, Y, Z represent missing labels. Dolostone and granite are similar because both...

The diagram represents a conglomerate rock. Some of the rock particles have been labeled. Which conclusion is best made about the rock particles?

According to the Scheme for Sedimentary rock Identification, which sedimentary rock formed from the compaction of fragments of the skeletons and shells of sea organisms?

The diagram shows 3 geologic columns representing widely separated rock outcrops that had a common origin. Descriptions of each sedimentary rock are indicated beside the layers. The rock layers haven't been overturned. Which rock layer is composed of sediments of the largest grain size?

The diagram shows a process that is used to separate gypsum from shale on the basis of density. Crushed rock is dropped into a mixture of liquid and small particles, called a slurry. The data tables show the mass and volume of 3 samples of gypsum and 3 samples of shale after they were separated by this process. In addition to the difference in density, how else are shale and gypsum different?

Which rocks would most likely be separated by a transition zone of altered rock (metamorphic rock)?

Which statement best describes pebbles?

The diagram shows a cross section of bedrock where the Niagara River flows over the Niagara Falls. Which rock unit was most likely formed from chemical precipitates?

Most rocks that form from fragmental rock particles are classified as...

Which kind of rock was precipitated from seawater?

The diagram shows the structure of a student-developed chart fro identifying some rock samples. The circles laved Choice 1 through Choice 4 represent decision making steps leading to either path a or path b. Choice 5 hasn't been completed. Which characteristic should be used at Choice 5 to further identify the types of classic sedimentary rock?

Eurypterid fossils are abundant in the Bertie dolostone, a sedimentary rock layer found in western New York State. The presence of both the euypterids and the dolostone indicates that, during the formation of this rock layer, this region of New York State was...

Rock layers holding ripple marks, cross-bedding, and fossil shells indicate that these layers were formed...

Which characteristic is most common in sedimentary rocks?