Science Quiz / 'M' in Geology

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Can you name the answers to these Geology questions where all of the answers begin with 'M'?

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LettersinGeologyM
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QuestionAnswer
The boundary between the crust and the mantle; detected by seismology
This Geologic Era is known for dinosaurs, Pangaea's break-up, the rise of flowers, and a smashing conclusion
A stream that has many bends; usually develops on nearly level landscapes
A rapid and widepsread decline in biodiversity, such as at the end of the Permian and Cretaceous Periods
The ultramafic layer of Earth underlying the crust; the upper part behaves as a very viscous fluid
A copper carbonate with a bright green color (#1 above)
The largest marine animal phylum, it includes clams and oysters, slugs and snails, and squids and octopi
General term for an area that is at a conspicuously higher elevation than surrounding lands
A metamorphic rock made from recrystallized carbonate minerals; popular sculpture material
General term for any downslope movement of rock, soil, snow, or ice under the influence of gravity
An area of increased dip in otherwise gently dipping strata
Alteration of minerals, textures, and composition of rock caused by exposure to heat, pressure, and chemical action
Refers to igneous rocks with a large percentage of dark minerals like amphiboles, pyroxenes, and olivine
Talc = 1, Gypsum = 2, Calcite = 3, Fluorite = 4, … , Quartz = 7, Topaz = 8, Corundum = 9, Diamond = 10
This Geologic Epoch was marked by global cooling, expansion of grassland, and the rise of the Himalayas
A network of polygonal shrinkage cracks that open in wet sediments as water slowly evaporates (#4 above)
Group of phyllosilicates with basal cleavage that allows them to break into thin sheets (#3 above)
A mound, ridge, or ground covering of unstratified and unsorted till, deposited by glacial action (#2 above)
A naturally occurring, inorganic solid with definite chemical composition and ordered internal structure
Molten rock material that occurs below Earth's surface

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