Hydrothermal deposit - Study guides, Class notes & Summaries

MSCI 112 Final Exam Questions And Answers Latest Top Score. An igneous rock was formed with 8000 radioactive (parent) atoms but contains only 1000 radioactive (parent) atoms today. If the half-life for the radioactive element is 10 million years, the rock is ___ million years old. - correct answer. 30 Which of the common components of siliciclastic sediment are likely to have been formed from the original sediment source rock through chemical weathering? - correct answer. cla...

APSC 151 Final Exam With Complete Solutions

Marine Biology Latest Update with Certified Solutions The coastal zone the warm, nutrient-rich, shallow water that extends from the high-tide mark on land to the gently sloping, shallow edge of the continental shelf. Makes up less than 10 percent of the world's ocean area but contains 90 percent of all marine species. Provides numerous ecological and economic services. Subject to human disturbance. Estuaries where rivers enter the ocean. include river mouths, inlets, bays, sounds, salt marshes...

ASBOG ECONOMIC GEOLOGY QUESTIONS AND CERTIFIED ANSWERS 2023/2024 Assay - correct answer An analysis of the proportions of metal in an ore. Composition, purity, weight, or other properties of economic interest are tested. Average Grade - correct answer the average quantity or percentage of ore mineral content in an ore body Base Metal - correct answer A common and chemically active metal (oxidizes or corrodes easily) - lead or copper for example Dispersion - correct answer the process...

asthenosphere - correct answer the soft layer of the mantle that the lithosphere floats on climate system - correct answer all the earth system components that determine climate on a global scale and how climate changes with time core - correct answer the central part of the Earth crust - correct answer ...

What is the apparent dip of a bed? - ANSWER-Apparent dip of a bed or plane is the inclination of that bed or plane in a direction not perpendicular to strike. What is a fold line and how is it used? - ANSWER-The fold line is a hinge line along which a vertical cross section may be constructed and then flattened out to a horizontal or map view. It is used to represent the subsurface along any given line in a map view. It need not be perpendicular to strike. What is the angle and side relati...

ini order to support life which of the following is not necessary in soil caliche which type of intrusive igneous rocks would have the most contact metamorphism mafic Brainpower Read More which type of energy is the most polluting coal what is the term for what a rock originally was parent this structure forms when water energy continually decreases, leaving bigger sediments on the bottom and gradually getting smaller as you go up graded bedding comple...

Which geologic law explains the relative ages of rocks with respect to one another in a map or cross section? - ANSWER-Principle of Initial Horizontality Law of Superposition Law of Cross-cutting Relationship Surface exposure, in a temperate environment, of aluminum silicate minerals such as feldspar would result in the development of which of the following clay minerals? - ANSWER-Montmorillonite What geologic condition would produce slow drainage within the cone of depression of an unco...

What does the "Single-Point Resistivity Log" show and what area is it limited to? - ANSWER-A log that measures the resistivity using 2 electrodes and having a limited area of investigation of from 5 to 10 times the electrode diameter What is the "Area of Influence" of a well? - ANSWER-The area within which the potentiometric surface is lowered by withdrawal or raised by injection, of water through a well Define aquifer - ANSWER-A geologic unit that is saturated and sufficiently permeab...

What is a fold line and how is it used? - ANSWER-The fold line is a hinge line along which a vertical cross section may be constructed and then flattened out to a horizontal or map view. It is used to represent the subsurface along any given line in a map view. It need not be perpendicular to strike. What is the angle and side relationships for the sin equation? - ANSWER-sinα = opposite side/hypotenuse What is the angle and side relationships for the tanget equation? - ANSWER-tanα = oppo...