Is the landmass lithosphere of the world connected ,,( what it means ) ,,and Plz explain lithosphere properly ,, from class 11 ,,what is lithosphere ,,what is crust ,,what is ocean basin ,,what is continent ,, please explain it with diagram? ,,and plz explain what is mantle in geography
Answers
Answer:
Lithosphere Composition
The earth’s crust is not a homogeneous substance; it has different layers of rocks including sedimentary rocks on top, granitic and metamorphic rocks in the middle, and basaltic rocks on the bottom.
The earth’s crust also consists of several large dynamic tectonic plates. These tectonic plates move slowly but continuously at an average rate of around 10 cm. Considering this, there was no Atlantic Ocean, and North America and Europe together were one continent 180 million years ago. The Atlantic Ocean came into being because of the drifting apart from the Eurasian and North America plates.
Types of Lithosphere
There are two types of lithosphere:
Oceanic: Which is associated with oceanic crust and exists in the ocean basins.
Continental: This is associated with continental crust.
CRUST: The Earth's crust is a thin shell on the outside of the Earth, accounting for less than 1% of Earth's volume. It is the top component of lithosphere: a division of Earth's layers that includes the crust and the upper part of the mantle.
OCEAN BASIN: In hydrology, an oceanic basin may be anywhere on Earth that is covered by seawater, but geologically, ocean basins are large geologic basins that are below sea level.
CONTINENT: A continent is one of several large landmasses. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in area to smallest, these seven regions are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. Variations with fewer continents may merge some of these,