are the rock layers still continuous explain your answer
Rocks. The shaded areas on the map represent regions of the United States that have evaporite rock layers (layers of rock formed from the evaporation of seawater) under the surface bedrock. The rocks have not been overturned. The three main groups of rocks are sedimentary,_____, and igneous rocks. The Law of Faunal Succession explains that fossils found in rock layers are also ordered in this way. Rock layers A through E have been labeled. If the sediment/rock is permeable, the water will flow easily through the sediment/rock and provide a good supply of water for a well. The processes involved in the rock cycle often take place over millions of years. When solid, hard rock is bent (or folded) it invariably fractures and breaks because it is brittle (Figure 1).1 Rock will bend only if it is still soft and pliable—“plastic” like modeling clay or children’s Playdough. Plate tectonics - Plate tectonics - Earth’s layers: Knowledge of Earth’s interior is derived primarily from analysis of the seismic waves that propagate through Earth as a result of earthquakes. The cross section shows the generalized structure of Then, sediment is deposited on the exposed rock layers. Can sedimentary rock form directly from metamorphic rock? Depending on the material they travel through, the waves may either speed up, slow down, bend, or even stop if they cannot penetrate the material they encounter. 31) On the cross section shown, place an X to indicate a location where the rock, marble, was formed. Metamorphic. Most of the rocks exposed at the surface of Earth are sedimentary--formed from particles of older rocks that have been broken apart by water or wind.The gravel, sand, and mud settle to the bottom in rivers, … B)Rock layers were not deposited in the valley areas. The Three Layer Cake There are thousands upon thousands of layers in the earth's crust. 4. to interpret rock sequences and to identify rock layers 5. The dominant view today is that slow and gradual (uniformitarian) processes, similar to the processes we observe in the present, explain the thick, fossil-bearing sedimentary rock layers all over the earth. If such modeling clay is allowed to dry out, it is no longer pliable but hard and brittle, so any attempt to bend it will cause it to break and shatter. In the rock cycle the three main rock types are igneous, sedimentary, and metamorphic. The youngest rock layers are at the top and the oldest are at the bottom, which is described by the law of superposition. Distinctive rock layers, such as the Coconino Sandstone, are matched across the broad expanse of the canyon. _____ are made of one or more minerals. The ability of a sediment/rock to provide a steady water supply is limited by its permeability, even when fully saturated. The youngest rock layers are at the top, and the oldest rock layers are at the bottom. A)Some rock layers are folded more than others. No, it must turn to sediment first. Base your answer(s) to the following question(s) on the geologic cross section of bedrock shown below. 2. an angular unconformity 3. ROCKS AND LAYERS We study Earth's history by studying the record of past events that is preserved in the rocks.The layers of the rocks are the pages in our history book. Rock layers are usually ordered with the oldest layers on the bottom, and the most recent layers on top. 30) Explain why rock unit H in the cross section shown is not one continuous layer. So on the scale of a human lifetime, rocks appear to be “rock solid” and unchanging, but in the longer term, change is always taking place. Explain your answer. A through G identify rock layers and Q represents a fault. These rock layers were once connected, as stated by the rule of lateral continuity. oldest rock unit shown in the given cross section. 11.Base your answer to the following question on the map and cross section below. Explain your answer. Base your answers to questions 36 and 37 on the geologic cross section below of a region of Earth's crust. Groundwater Movement Answer Key, continued 20. Two index fossils are shown and their locations within the rock layers are indicated. A sequence of rock layers is uplifted and eroded. The movement of bedrock along fault Q most probably produced Lines W, X, Y, and Z are locations of unconformities. also form if layers of rock are eroded away. These slow geologic processes would require hundreds of millions of years to deposit all the successive sediment layers. Interpret rock sequences and to identify rock layers are at are the rock layers still continuous explain your answer top, and the oldest are at the,. 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