Answer:
1. turbidity current: A turbidity current is a type of underwater sediment flow that occurs when suspended sediment in a body of water becomes denser than the surrounding water and flows downslope. These currents can transport large amounts of sediment and can lead to the formation of sedimentary rocks such as turbidites.
2. weathered feldspar: Weathered feldspar refers to feldspar minerals that have undergone physical and chemical weathering processes. Feldspar is a common mineral found in igneous rocks, and when exposed to weathering, it can break down into clay minerals or other secondary minerals.
3. 2 mm to 0.0625 mm: This refers to the size range of sediment particles known as sand. Sand particles are larger than silt and clay but smaller than gravel. They have a grain size between 2 millimeters and 0.0625 millimeters.
4. fossil making: Fossil making, also known as fossilization, is the process through which the remains or traces of organisms are preserved in rocks. This can occur through a variety of processes such as mineralization, petrification, or impression.
5. fundamental rock unit: A fundamental rock unit refers to a basic and distinct rock layer or formation that serves as a building block for more complex rock sequences. These units are typically defined by specific lithological characteristics or the presence of certain fossils.
6. conglomerate rock: Conglomerate rock is a type of sedimentary rock composed of rounded gravel-sized particles (greater than 2 mm) that are cemented together. The gravel particles can consist of various rock types, pebbles, and sometimes fossils.
7. reduction in volume: Reduction in volume refers to a decrease in the physical size or volume of a substance. In the context of sedimentary rocks, reduction in volume can occur through processes such as compaction and lithification, where the weight of overlying sediment causes the grains to pack together more tightly, resulting in a decrease in pore space.
8. rock made from shells and coral: Limestone is a type of sedimentary rock that is primarily composed of the remains of marine organisms such as shells, coral, and skeletal fragments. These organic remains accumulate over time and become cemented together to form limestone.
9. rock making formation: Rock formation refers to the process through which rocks are created or formed. This can occur through various geological processes such as sedimentation, lithification, metamorphism, or volcanic activity. Rock formations can range from small-scale features to large-scale geological formations such as mountains or cliffs.
To match the terms with their respective descriptions:
1. turbidity current - graded bed
2. weathered feldspar - clay minerals
3. 2 mm to 0.0625 mm - sand
4. fossil making - petrifaction
5. fundamental rock unit - formation
6. conglomerate rock - gravel
7. reduction in volume - compaction
8. rock made from shells and coral - limestone
9. rock making formation - lithification
Step-by-step explanation: