on April 16, 2022
Which erosional features are produced by Valley Alpine glaciers?
GeologyD. Erosional feature produced by alpine valley glaciers is called Cirque. These are formed at the head of glacier and are formed by glacier pushing back into the mountain top. A cirque is characterized by bowl shaped depression at the head of the glacial valley. What erosional features are produced by Alpine glaciers? Alpine glaciers
on April 16, 2022
When our Earth was covered with water?
GeologyEarth may have been a ‘water world’ 3bn years ago, scientists find. Scientists have found evidence that Earth was covered by a global ocean that turned the planet into a “water world” more than 3bn years ago. When the earth was with water all creatures had to swim in it a cover B covers C
on April 16, 2022
How overdue is Yellowstone?
GeologyYellowstone is not overdue for an eruption. Volcanoes do not work in predictable ways and their eruptions do not follow predictable schedules. Even so, the math doesn’t work out for the volcano to be “overdue” for an eruption. Is Yellowstone about to erupt 2021? “Yellowstone is not going to erupt again anytime soon, and when
on April 16, 2022
What are some examples of constructive forces on earth?
GeologyConstructive forces are processes that cause the Earth’s surface to build up or rise. Examples include depositions, earthquakes, faults, and volcanoes. … Volcanoes: volcanoes release gas, ash, and lava that alter the appearance of the volcano and can change the land below (build up of rock or destroyed land and trees). What are examples of
on April 16, 2022
Which of Earth’s layers is just below the crust?
Geologythe mantlethe mantle, a dense, hot layer of semi-solid rock approximately 2,900 km thick. The mantle, which contains more iron, magnesium, and calcium than the crust, is hotter and denser because temperature and pressure inside the Earth increase with depth. Which of Earth’s layers is just below the crust apex? Question: Which of Earth’s layers
on April 16, 2022
How are marker fossils used to define subdivisions of the geologic time scale?
Geologyindex fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. How are marker fossils used to
on April 16, 2022
What plate boundary was the Christchurch earthquake on?
GeologyTectonic setting & Cause Regardless, the earthquake was created along a conservative plate margin where the Pacific Plate slid past the Australian Plate in the opposite direction. The earthquake occurred on a fault running off this major plate boundary. What type of boundary was the 2011 Christchurch earthquake? A group of dextral strike-slip structures, known
on April 16, 2022
What geologic feature is shown off the west coast of North America?
GeologyOn the West coast of North America, the coast ranges and the coastal plain form the margin, which is partially bounded by the San Andreas Fault, a transform boundary of the Pacific Plate. Most of the land is made of terranes that have been accreted onto the margin. What are the geological features of North
on April 16, 2022
How many years ago were the Galapagos Islands formed?
Geologybetween 3 million and 5 million years agobetween 3 million and 5 million years ago, the islands are “young” in geologic time. Not unlike Hawaii, the islands are located over an area of particularly hot mantle that in essence burns through earth’s crust, creating volcanic activity. How long did it take for the Galapagos Islands
on April 16, 2022
How does climate change affect the Rocky Mountains?
GeologyIn the Rocky Mountain Region and elsewhere, climate change can affect a wide range of environmental conditions, including precipitation levels, drought and flooding frequency, soil moisture, invasive species, beetle and disease infestations and other factors. How does climate affect mountains? The temperature gets colder the higher up the mountain you go. This is because as