Calcrete or Caliche is a type of sedimentary rock often found in arid and semiarid regions. It is composed of calcium carbonate with bits of gravel, clay and silt. It is found in Australia, Kalahari Desert, Sonoran and Mojave desert. Note that caliche does not form through dissolution and reprecipitation of rainwater. Rather, it forms when water from the ground rise above through capillary action, bringing up minerals from the ground into the surface.
Answer:
The correct answer is D, the Himalayan Mountains.
Explanation:
The Himalayas is a high mountain system in Asia. It is the highest mountain range on Earth and lies between the Indian subcontinent in the south and the Tibetan highlands in the north. The mountains stretch for a length of about 3000 kilometers from Pakistan to Burma and reach a width of up to 350 kilometers. In the Himalayas are ten of the fourteen highest mountains on earth, the peaks of which are more than 8000 meters high, including Mount Everest, which is 8848 m above sea level being the highest mountain on Earth. With its southern location and the Tibetan highlands rising up in the back of the Himalayas as an extensive high plateau, the Himalayas have a great influence on the climate of South and Southeast Asia.
Answer:
Fault- B
Extrusion- H
Unconformity- G
Relative Age- E
Law of Superposition- C
Intrusion- D
Absolute Age- A
Index Fossils- F
Explanation:
<u>Fault-</u> A fault generally refers to the fracture as a result of which either the hanging wall goes up or down with respect to the footwall. it takes place either due to compressional or extensional stress. In simple terms, it is a break that occurs in the earth’s crust.
<u>Extrusion-</u> These are the consolidated rocks that are formed when magma comes out to the surface forming extrusive rocks. For example, Basalt and Rhyolite.
<u>Unconformity-</u> It is defined as the period of non-deposition. It occurs when the rocks surfaces are eroded extensively. These are the surfaces where the much older rock meets geologically younger rocks.
<u>Relative age-</u> When the age of any rock is compared with the age of different rocks then, the relative age of the rock is obtained. It is extensively used for the calculation of the age of rocks from any sedimentary sequence.
<u>Law of Superposition-</u> This law enables us to evaluate the relative ages of two or more rocks as it depicts the younger rocks that are deposited on the apex and the older rocks at the bottom of a sequence.
<u>Intrusion-</u> These are the rocks that form due to the crystallization and solidification of magma beneath the earth's surface. For example, granite and gabbro.
<u>Absolute age- </u>This refers to the total amount of time (in terms of years) that a rock has formed. These rocks are formed from the deposition, compaction, and lithification of sediments in a sedimentary environment.
<u>Index fossils-</u><u> </u>These are the fossils that were present for a shorter period of time and have a wide geographical distribution and were mostly used by the geologists in order to match the rock layers.
Fix the foundation if that does not wrk find a material too help stabilize the soil hope this helps
