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
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
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
How can organisms be preserved?
Geology and GeographyFreezing, drying and encasement, such as in tar or resin, can create whole-body fossils that preserve bodily tissues. These fossils represent the organisms as they were when living, but these types of fossils are very rare. Most organisms become fossils when they’re changed through various other means. What are 5 ways organisms can be preserved?
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
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
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
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
Where is erosion concentrated along a meandering stream?
Geology and GeographyWhere do deposition and erosion of material occur along a meander? Deposition occurs on the inside of the meander, whereas erosion occurs on the outside. Where is erosion most dominant in a stream? 1. As suggested above, in response to a streams velocity, a river will tend to erode along the outside of a meander,
What does kettle lake mean?
Geology and GeographyWhat is the meaning of kettle lake? KETTLE LAKES. Kettles are depressions left behind after partially-buried ice blocks melt. Many are filled with water, and are then called “kettle lakes”. Most lakes in Michigan could be described as kettle lakes, and the term “kettle lake” describes the way the lake basin was formed. What is