{"id":3669,"date":"2020-01-01T22:36:01","date_gmt":"2020-01-01T22:36:01","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/colorado-wmopen-geology\/?post_type=chapter&p=3669"},"modified":"2021-01-28T17:07:48","modified_gmt":"2021-01-28T17:07:48","slug":"why-wait","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/colorado-wmopen-geology\/chapter\/why-wait\/","title":{"raw":"Why Wait?","rendered":"Why Wait?"},"content":{"raw":"

Sedimentary Rock Forms at Earth's Surface<\/h2>\r\nIn elementary school, kids learn that there are three main kinds of rocks (ig, met, sed).\r\nAfter the chapter on igneous rocks, you may have noticed that this book tackled weathering, erosion, soils, and mass wasting ALL before we got to the other primary rock types (sedimentary and metamorphic)!\u00a0 Why?\r\n\r\nWell the answer is really that all those processes (weathering, erosion, mass wasting) are things that happen at earth's surface.\r\nThis is the realm of sedimentary rocks.\r\nSedimentary rocks do NOT form in the deep earth, where magma (igneous rock precursor) and\/or metamorphism occur.\r\nSince metamorphic rocks require a starting material-- either igneous or sedimentary (or even metamorphic)-- we have also waited to discuss the associated processes.\r\n

Surface Environments<\/h2>\r\nIt is this aspect, i.e. the formation at earth's surface, that makes sedimentary rocks so powerful.\r\nThey allow us to peer into the past and envision what the earth was like when they were forming!\r\n\r\nbelow, a diagram of just some of the many different kinds of environments in which sedimentary rocks might form.\r\nIt's hardly a matter of \"on land\" (i.e. terrestrial) or in the ocean (i.e. marine),,\r\n\r\nThere are numerous different kinds of terrestrial environments and marine environments... and EACH will generate specific attributes within sedimentary rocks that form there!\r\n\r\n\"File:Main\r\n

Wiki Commons,\u00a0 Principales medios sedimentarios.svg<\/a>: Mikenorton<\/span><\/h6>","rendered":"

Sedimentary Rock Forms at Earth’s Surface<\/h2>\n

In elementary school, kids learn that there are three main kinds of rocks (ig, met, sed).
\nAfter the chapter on igneous rocks, you may have noticed that this book tackled weathering, erosion, soils, and mass wasting ALL before we got to the other primary rock types (sedimentary and metamorphic)!\u00a0 Why?<\/p>\n

Well the answer is really that all those processes (weathering, erosion, mass wasting) are things that happen at earth’s surface.
\nThis is the realm of sedimentary rocks.
\nSedimentary rocks do NOT form in the deep earth, where magma (igneous rock precursor) and\/or metamorphism occur.
\nSince metamorphic rocks require a starting material– either igneous or sedimentary (or even metamorphic)– we have also waited to discuss the associated processes.<\/p>\n

Surface Environments<\/h2>\n

It is this aspect, i.e. the formation at earth’s surface, that makes sedimentary rocks so powerful.
\nThey allow us to peer into the past and envision what the earth was like when they were forming!<\/p>\n

below, a diagram of just some of the many different kinds of environments in which sedimentary rocks might form.
\nIt’s hardly a matter of “on land” (i.e. terrestrial) or in the ocean (i.e. marine),,<\/p>\n

There are numerous different kinds of terrestrial environments and marine environments… and EACH will generate specific attributes within sedimentary rocks that form there!<\/p>\n

\"File:Main<\/p>\n

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