Geology of the world and the Environment

2021-05-14 02:18:12 GEOLOGY DISCIPLINES ( PART THREE)

#Geomorphology The branch of geology that studies Earth relief, both continental and oceanic and infers the causes that have originated it and its development. There are different branches according to the studied areas and methods (arid, climatic, dynamics, etc. geomorphology.)

#Geochemistry The branch of geology that studies the several chemical elements and isotopes distribution in different places of the Earth, layers, sediments, etc., as well as the reactions that take place.
Geotechnics The branch of geophysics that applies this knowledge to the solutions of civil engineering problems (construction of bridges, dams, etc.)
Geothermics The branch of geophysics that looks into the study of Earth’s inner heat and temperature, heat sources and thermic properties of materials.
Gravimetry The branch of geophysics that looks into the study of terrestrial gravity field anomalies and explains its causes associating it to mineral deposits, etc.

#Hydrogeology The branch of applied geology that studies ground waters and their relationship with surface ones and precipitation and applies it to water supply and overexploitation and contamination derived problems.
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2021-05-13 00:01:05 GEOLOGY DISCIPLINES ( PART TWO)

#Geophysics The branch of geology that applying physical methods (gravity, magnetism) studies the Earth from the inner layers (earth structure) to the outer ones (winds, tides, etc.)

#GeologyScience that studies Earth’s composition, structure, morphology, dynamics and age. It is structured in several branches: mineralogy, crystallography, petrology, external and internal geodynamics, geochemistry, tectonics, stratigraphy, sedimentology, geomorphology, palaeontology, historical geology and applied geology.
Applied geology The branch of geology that studies the application of geology knowledge to different human activities, specially to development: agriculture, resources, geotechnics.

#Structural geology : The branch of geology that deals with rock disposition and internal structure. In fact, it is very similar to tectonics but the latter discusses it in a regional sense and structural geology at small scale.
Geomagnetism The branch of geophysics that studies terrestrial magnetism and its application in Earth’s structure study, continental drift, resources research, etc.
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2021-05-13 00:00:23 GEOLOGY DISCIPLINES ( PART ONE)

#Climatology The branch of geography that studies and classifies climates.

#Crystallography The branch of mineralogy that deals with crystalline matter, forms, structures and properties of the crystals and their classification.

#Edaphology Science between geology and biology that studies soil formation, classification and dynamics.

#Stratigraphy The branch of geology that studies, explains, etc. sedimentary rocks with regard to the adjacent ones with respect to their temporal relationship and correlation with other close or distant units.

#Geochronology The branch of geology that studies and applies rock dating methods. It has two branches: relative and absolute dating.

#Geodynamics The branch of geology that deals with geologic processes, actions and results of relief modification caused by both external geologic agents (wind, precipitation…) or internal (volcanism, seismicity, orogeny. ) It is divided into two branches: external and internal geodynamics.
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2021-05-12 01:56:39 This book presents in a concise format a simplified and coherent geological-dynamical history of the Indian subcontinent (including Sri Lanka, Bangladesh, Myanmar, Southern Tibet and Pakistan).
#FREE #DOWNLOAD https://t.me/geominerals/440
Encompassing a broad array of information related to structure and tectonics, stratigraphy and palaeontology, sedimentation and palaeogeography, petrology and geochemistry, geomorphology and geophysics, it explores the geodynamic developments that took place from the beginning . Presented in a distilled form, the observations and deductions of practitioners, this book is meant for teachers, researchers and students of geology, geophysics and geomorphology and practitioners of earth sciences. A comprehensive list of references to original works provides guidance for those seeking further details and who wish to examine selected problems in depth. The book is illustrated with a wealth of maps, cross sections and block diagrams ― all simplified Open / Comment

2021-05-09 14:41:15 THE RARE-EARTH ELEMENTS (REES)

Rare earth elements (REE) are a group of 17 chemically similar #metallic elements in the #periodic_table, The group consists of #yttrium , #scandium and the 15 lanthanide elements ( #lanthanum , #cerium , #praseodymium , #neodymium , #promethium , #samarium , #europium , #gadolinium , #terbium , #dysprosium , #holmium , #erbium , #thulium , #ytterbium , and #lutetium ). Scandium is found in most rare earth element deposits and is sometimes classified as a rare earth element. The International Union of Pure and Applied #Chemistry includes scandium in their rare earth element definition.

The rare earth elements are all #metals, and the group is often referred to as the "rare earth metals." These metals have many similar properties, and that often causes them to be found together in #geologic deposits. They are also referred to as "rare earth oxides" because many of them are typically sold as #oxide compounds.

Despite their name, REE are not rare. In fact, they're rather plentiful in the Earth's crust. But, tremendous effort and investment are required to extract, refine and process them.

Picture http://unet.conocimientos.com.ve/temas-de-tecnologia

#GeologyHere #Note
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2021-05-09 04:03:23 An aquifer is an #underground layer of #rock or soil that contains water. The water is held in the spaces between the rock or #soil particles. There are two kinds of aquifer:

1. a #confined aquifer is a water supply which is sandwiched between two #layers of soil or rock that water can not pass through ( #impermeable layers ),

2. an #unconfined aquifer is a water supply that has an impermeable layer below it, but not above it. A confined aquifer that is under pressure is an #artesian aquifer. The pressure can often push water to the surface in a well drilled into an artesian aquifer; usually wells need a pump to bring water to the surface from the aquifer they are drilled into.

We use #aquifers as a source of drinking water and of water to irrigate crops or to use in industry, #pumping water from the aquifer using a well. As with any container of water, pumping from the aquifer empties it--or at least decreases the amount of water it holds. Aquifers are refilled, or recharged, in areas where they are exposed on the surface of the earth. Water can re-enter the aquifer in these recharge areas.

give in the comment all names of items numbered from 1 to 7

Let's find the number of #geologists and #hydrogeologist through correct answers

#Geology #water #environment
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2021-05-06 23:16:54 STRUCTURAL GEOLOGY

Author: Haakon Fossen.

Publisher: Cambridge University Press

#FREE #DOWNLOAD:
https://t.me/geominerals/437

The purpose of the book is to introduce undergraduate students, and others
with a general geologic background, to the basic principles, aspects and methods of structural geology. It is mainly concerned with the structural geology of the crust, although the processes and structures described are relevant also for deformation that occurs at deeper levels within our planet. Further, remote data from Mars and other planets indicate that many aspects of terrestrial structural geology are relevant also beyond our own planet. Open / Comment

2021-05-06 02:31:49 BooM

@miningmayhem Open / Comment

2021-05-04 15:06:16 Geological Storage of Radioactive

Author : R. Pusch

Free download https://t.me/Geologyservices2/4523 Open / Comment

2021-05-04 13:49:32 Solved Problems in Geophysics

Author : Elisa Buforn, Carmen Pro and Agustin Udias

Free download https://t.me/Geologyservices2/4706 Open / Comment