GeoLogic Mapping C
Posted: October 11th, 2020, 6:23 am
First question: Find the true dip if you measured the dip as 10.8 degrees and you were 5.8 degrees off the true dip direction.
10.74?
I had, which could be close enough.
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yessir. I believe there's also batholiths which are formed by magma intruding into a body but doesn't reach the surface?UTF-8 U+6211 U+662F wrote: ↑October 15th, 2020, 8:13 pmDikes: Cut across existing strata (usually) vertically Sills: Intruded between and parallel to existing strata Laccolith: Lens-shaped, causes uplift in the shape of a dome
Felsic and Mafic rocks are types of igneous rocks, meaning they are formed by lava/magma cooling. Mafic (wordsmash of magnesium and ferric) rocks/minerals are generally heavier, have less Silica, and contain Magnesium and Iron, and Felsic (wordsmash of feldspar and silica) rocks/minerals are lighter in weight, have more Silica, and contain the elements for Feldspar (Idon'trememberoffthetopofmyhead) and Quartz (SiO2).UTF-8 U+6211 U+662F wrote: ↑October 16th, 2020, 12:25 pm Explain the difference between mafic and felsic minerals. How are mafic and felsic minerals formed?
Yep, your turn! (Also I said minerals in the question, but minor detail.)twoplustwoisten wrote: ↑October 18th, 2020, 9:28 pmFelsic and Mafic rocks are types of igneous rocks, meaning they are formed by lava/magma cooling. Mafic (wordsmash of magnesium and ferric) rocks/minerals are generally heavier, have less Silica, and contain Magnesium and Iron, and Felsic (wordsmash of feldspar and silica) rocks/minerals are lighter in weight, have more Silica, and contain the elements for Feldspar (Idon'trememberoffthetopofmyhead) and Quartz (SiO2).UTF-8 U+6211 U+662F wrote: ↑October 16th, 2020, 12:25 pm Explain the difference between mafic and felsic minerals. How are mafic and felsic minerals formed?