goalfoki.blogg.se - Drifting lands faq

Tidal force is due to the attraction of the moon and the sun that develops tides in oceanic waters (tides explained in detail in oceanography).This increase in centrifugal force has led to pole fleeing, according to Wegener. Centrifugal force increases as we move from poles towards the equator.This bulge is due to the rotation of the earth (greater centrifugal force at the equator). Earth is not a perfect sphere it has a bulge at the equator. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. This total does not include 16th section school trust lands, public trust tidelands, or tax-forfeited lands.

This acreage is constantly changing due to acquisitions and sales.

The polar-fleeing force relates to the rotation of the earth. Answer: It is currently estimated that the state through its various agencies owns approximately 400,000 acres.

Wegener suggested that tidal force (gravitational pull of the moon and to a lesser extent, the sun) also played a major role.

Westwards due to tidal currents because of the earth’s motion (earth rotates from west to east, so tidal currents act from east to west, according to Wegener).

Towards the equator due to the interaction of forces of gravity, pole-fleeing force (due to centrifugal force caused by earth’s rotation) and buoyancy ( ship floats in water due to buoyant force offered by water).

Scientists call this movement ‘continental drift’.įorces responsible for drifting of continents (According to Alfred Wegner)Īccording to Wegener, the drift was in two directions:

It broke into two pieces, and scientists have called the continent in the north Laurasia and the continent in the south Gondwanaland (named by Eduard Suess, an Austrian geologist).The two large continents continued to break apart into the smaller continents that exist today. Scientists call it Pangaea (meaning “all lands” in Greek). Then about 200 million years ago the land began to drift apart. The fact that South America is a mirror image of Africa is presented as a proof of the continental drift theory (see video below for an animation showing the migration of both of these continents).įor hundreds of millions of years, all the land of Earth was joined together in one large mass or super continent. Continental Drift Theory was put forward by the German scientist Alfred Wegner in 1915.Īccording to the Continental Drift Theory, part of the crust are capable of horizontal movement round the globe causing the continents to slowly change their positions in relation to one another.