on April 17, 2022
What does poor cleavage mean?
GeologyOn minerals with poor cleavage, the smooth crystal edge is not very visible, since the rough surface is dominant. If a mineral exhibits cleavage, but it so poor that it is hardly noticeable, it has “indiscernible” cleavage. What are the 5 types of cleavage? Types of cleavage Determinate. Indeterminate. Holoblastic. Meroblastic. What does cleavage mean
on April 17, 2022
What is the best material for earthquakes?
GeologysteelWood and steel have more give than stucco, unreinforced concrete, or masonry, and they are favored materials for building in fault zones. Which type of material is most likely to withstand an earthquake without breaking? More flexible than concrete and other building materials, steel is more likely to bend instead of break when experiencing seismic
on April 17, 2022
Is Chalk clastic or non clastic?
GeologyChalk is a non-clastic carbonate sedimentary rock that is form of limestone compesed of the mineral calcite. Which rock is clastic or non-clastic? Clasts are the fragments of rocks and minerals. Examples of clastic rocks are sandstone and mudstone. Non-clastic rocks are created when water evaporates or from the remains of plants and animals. Limestone
on April 17, 2022
Which minerals are the most common in sedimentary rocks and why?
GeologyThe Mineralogy of Sedimentary Rocks Quartz, because it is stable under conditions present at the surface of the Earth, and because it is also a product of chemical weathering, is the most abundant mineral in sandstones and the second most abundant mineral in mudrocks. What minerals are most common in sedimentary rocks? Thus the most
on April 17, 2022
Where are the major fault lines?
GeologyList of fault zones Fault Name Length [km] Location Aedipsos-Kandili Fault 60 North Euboean Gulf, Greece Alaska-Aleutian Megathrust >4000 Kamchatka, Russia to Gulf of Alaska Alpine Fault 1400 South Island, New Zealand Altyn Tagh Fault 2000 Tibetan Plateau/Tarim Basin Where are the major fault lines in the US? The New Madrid Seismic Zone (NMSZ) in
on April 17, 2022
What are the main component of rock?
GeologyMineralsMinerals are the fundamental components of rocks. They are naturally occurring inorganic substances with a specific chemical composition and an orderly repeating atomic structure that defines a crystal structure. What are the three components of rock? There are three kinds of rock: igneous, sedimentary, and metamorphic. Igneous rocks form when molten rock (magma or lava)
on April 17, 2022
What birds came about in the Paleocene epoch?
GeologyWhat animals were in the Paleocene epoch? Paleocene mammals included Cretaceous species such as opossum-like marsupials and, especially, the archaic and unusual multituberculates—herbivorous animals that had teeth very similar in some respects to those of the later, more advanced rodents. What happened in the Paleocene epoch? Paleocene Epoch (65.5 – 55.8 MYA) The Paleocene epoch
on April 17, 2022
What colors are the San Jose Earthquakes?
GeologyThe San Jose Earthquakes colors are black, blue, red, and white. Why are the San Jose Earthquakes called that? When the six-year-old North American Soccer League awarded an expansion franchise to San Jose in 1974, the San Jose Mercury News held a contest for the fans to name the team. The winning name was Earthquakes.
on April 17, 2022
What causes a tsunami ks2?
GeologyTsunamis are generated by any large, impulsive displacement of the sea level. The most common cause of a tsunami is sea floor uplift associated with an earthquake. Tsunamis are also triggered by landslides into or under the water surface, and can be generated by volcanic activity and meteorite impacts. How are tsunamis caused ks2? Most
on April 17, 2022
What defines a geological time period known as an era?
Geologyera, a very long span of geologic time; in formal usage, the second longest portions of geological time (eons are the longest). How are eras defined? 1. A period of time as reckoned from a specific date serving as the basis of its chronological system. 2. A period of time characterized by particular circumstances, events,