Exploration of Crustal Structure In East Canada: Analysis of seismic area



Exploration of Crustal Structure In East Canada: Analysis of seismic area

CHAPTER 1: INTRODUCTION

Drilling is important as it helps to find out what lies beneath the place we stand. The descent into the depths will therefore begin with a long drill which aims to break through the crust. The crust, indeed, geological activity on Earth which gives an idea of what to expect: volcanoes and earthquakes caused by plate movements. The plate movement is a proof that shows that the ground on which we live is a crust that moves on constantly. The other thing is the mantle. Mantle should be found within 8 km of solid rock in the ocean and within 45 kilometres thick under the continents. Reaching this thick coat of Earth's core is considered as an achievement for Geologists.

Plate tectonics is one of the major factors affecting the potential habitability of a terrestrial planet. The physics of plate tectonics is, however, still far from being complete, leading to considerable uncertainty when discussing planetary habitability. The paper will summarize recent developments on the evolution of plate tectonics on Earth, which suggest a radically new view on Earth dynamics as well as the concept of drilling into the continental crusts to gain knowledge. The convection in the mantle has been speeding up despite its secular cooling, and the operation of plate tectonics has been facilitated throughout Earth's history by the gradual subduction of water into an initially dry mantle. The role of plate tectonics in planetary habitability through its influence on atmospheric evolution is still difficult to quantify, and, to this end, it will be vital to better understand a coupled core-mantle-atmosphere system in the context of solar system evolution.

CHAPTER 2: LITERATURE REVIEW

Under what conditions can a planet like Earth—that is, a planet that can host life—be formed? This question of planetary habitability has been addressed countless times in the past, as it is deeply connected to the origin of life, perhaps the most fascinating problem in science. In the last decade or so, research activities in this field have been invigorated, fueled by a rapidly expanding catalog of extrasolar planets. The habitability of a planet depends on a number of factors including, for example, the mass of the central star and the distance from it, the atmospheric composition, orbital stability, the operation of plate tectonics, and the acquisition ...