Term
| Name all framework silicates. |
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Definition
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Term
| Name all sheet silicates. |
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Definition
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Term
| Name all double chain silicates. |
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Definition
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Term
| Name all single chain silicates. |
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Definition
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Term
| Name all isolated tetrahedra silicates. |
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Definition
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Definition
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Definition
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Definition
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Term
| Name all feldspar varieties and chemical compositions. |
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Definition
Potassium feldspar: KAlSi308
Plagiocase feldspar: NaAlSi3O8 or CaAl2Si2O8 |
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Term
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Definition
| KAlSi3O8; cleavage-2 at right angles; pearly luster on perfect cleavage, white to gray; PINK or yellowish, some green |
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Term
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Definition
| NaAlSi3O8 or CaAl2Si2O8; cleavage--two at right angles, striations on perfect clevage; white to grey, less commonly green or yellowish |
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Definition
| SiO2; no cleavage; crystal faces maybe?; colorless; sometimes smokey gray, pink, yellow |
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Definition
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Definition
| KAl3Si3O10(OH)2; thin sheets; colorless, slight gray to green to brown in thick pieces |
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Term
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Definition
| K(Mg, Fe)3AlSi3O10(OH)2; thin sheets; black to dark brown |
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Term
| Name all amphibole varieties. |
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Definition
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Term
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Definition
Complex Ca, Na, Mg, Fe, Al silicate plus Si8O22(OH)2
irregular aggregates; cleavage-two perfect directions at 60/120; pale to deep green |
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Term
| Name all pyroxene varieties. |
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Definition
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Term
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Definition
| Complex Ca, Na, Mg, Fe, Al silicate plus Si2O6; cleavage--two at directions 90; very dark green to black, green to brow, to grayish green |
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Term
| Name all isolated tetrahedra silicates varieties. |
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Definition
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Term
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Definition
| (Mg, Fe)2SiO4; granular masses, no cleavage, olive to greyish green or brown |
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Term
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Definition
| Ca, Mg, Fe, Al silicate plus SiO4; no cleavage; red and brown |
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Term
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Definition
| Ca, Mg, Fe, Al silicate plus SiO4; no cleavage; red and brown |
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Term
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Definition
| Ca, Mg, Fe, Al silicate plus SiO4; no cleavage; red and brown |
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Term
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Definition
| CaCO3; 3 perfect cleavages at oblique angles; colorless; reacts to HCL |
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Term
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Definition
| CaMg(CO3)2; 3 perfect cleavages; oblique; HCL reacts to powder |
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Term
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Definition
| NaCl; 3 perfect cleavages at right angle; colorless |
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Definition
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Definition
| Fe2O3; no cleavage; reddish brown to black |
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Definition
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Definition
| PbS; metallic silver; 3 perfect cleavages at right angles |
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Term
| What is a crystalline texture? |
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Definition
| the grains are intergrown and form an interlocking pattern. |
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Term
| What is a clastic texture? |
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Definition
| one in which mineral grains, fragments of other rocks and/or fossils are packed together as separate particles with cementing material in between particles (anything with fossils in it is clastic) |
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Term
| Most igneous rocks are clastic or crystalline? |
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Definition
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Term
| Most metamorphic rocks are clastic or crystalline? |
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Definition
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Term
| Most sedimentary rocks are clastic or crystalline? |
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Definition
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Term
| Are most sedimentary rocks layered? |
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Definition
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Term
| Are most igneous rocks layered? |
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Definition
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Term
| Are most metamorphic rocks layered? |
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Definition
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Term
| 2 characteristics of igneous rocks. |
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Definition
| crystalline. not layered. |
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Term
| 2 characteristics of metamorphic rocks. |
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Definition
| crystalline. layered sometimes. |
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Term
| 2 characteristics of sedimentary rocks. |
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Definition
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Term
| What is phaneritic texture? |
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Definition
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Term
| What is Aphanitic texture? |
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Definition
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Term
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Definition
Phaneritic texture: Granite. Gabbro.
Aphanitic texture: Rhyolite. Basalt.
Vesicular texture: Pumice. Scoria. Obsidian. |
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Term
| What is bioclastic texture? |
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Definition
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Term
| Name all sedimentary rocks. |
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Definition
Bioclastic: Limestone Coquina, Coal
Fine-grained homogenous: Limestone
Clastic: (very fine-grained) Shale Mudstone
(medium-grained) sandstone
(coarse grained) conglomerate |
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Term
| What is foliated texture? |
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Definition
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Term
| Name all metamorphic rocks. |
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Definition
Foliated: Slate, Schist, Gneiss.
Nonfoliated: Quartzite, Marble |
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Term
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Definition
| slaty cleavage, grains not visible, does not scratch glass |
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Term
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Definition
| thin banding with platy minerals, may have wavy structure, minerals intergrown, does scratch glass, QUARTZ/MICA |
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Term
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Definition
| grains visible, course layers of alternating light (QUARTZ/FELDSPAR) and dark (AMPHIBOLE/PYROXENE); minerals appear intergrown |
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Term
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Definition
| very hard, breaks across grains, individual grains may be hard to identify |
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Term
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Definition
| reacts with HCL, looks sugary, grains interlocking, minerals CALCITE/DOLOMITE |
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Term
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Definition
| Massive. black in color. sometimes shiny. light weight. does not scratch glass. |
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Term
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Definition
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Term
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Definition
Shale is "thunk", coats fingers, clay-like smell
Slate is "tink" |
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Term
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Definition
| course grains for cement. pebbles. |
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Definition
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Definition
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Definition
| Volcanic glass. glassy texture. black. composition of granite. |
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Term
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Definition
| QUARTZ/FELDSPAR. maybe MUSCOVITE? HORNBLENDE? BIOTITE? |
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Term
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Definition
| mostly dark minerals. FELDSPAR. PYROXENE. no quartz. |
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Term
| Difference between Gabbro and Granite? |
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Definition
| Granite has lighter minerals and contains quartz. No pyroxene in granite. |
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Term
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Definition
| Very light weight. light color. grains...very fine. QUARTZ. Light colored FELDSPAR. |
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Term
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Definition
| OLIVINE? dark brown to black. |
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Term
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Definition
| inner core, outer core, mantle, asthenosphere, lithosphere |
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Term
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Definition
| Plates move apart and new lithosphere is created. Plate area increases. midatlantic ridge |
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Term
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Definition
| Plates come together and one is recycled back into the mantle. Plate area decreases. marianas trench. andes mountains. |
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Term
| Transform fault boundaries? |
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Definition
| Plates slide horizontally past each other. san andreas fault. |
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Term
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Definition
| stretch and pull. divergent boundaries. |
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Term
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Definition
| squeeze and shorten rock formations. convergent boundaries. |
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Term
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Definition
| push 2 sides in opposite directions. transform-fault boundaries. |
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Term
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Definition
| dip-slip, strike-slip, normal fault |
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Term
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Definition
| UP-DOWN shift. compressive forces. |
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Term
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Definition
| HORIZONTAL shift, parallel to the fault. shearing forces. |
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Term
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Definition
| dip-slip/strike slip. shearing/compressive forces. |
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Term
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Definition
| Dip-slip fault that extends. |
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Term
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Definition
| Dip slip fault that compresses. |
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Term
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Definition
| Low angle reverse dip slip fault. |
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Term
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Definition
| strike slip fault. if you see the rock in front of you move to the right. |
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Term
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Definition
| strike-slip fault. if you see the rock in front of you move to the left. |
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Term
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Definition
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Term
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Definition
| folds downward. (sins=going to hell=down) |
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Term
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Definition
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Term
| Oldest rock in Anticline? |
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Definition
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Term
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Definition
| On either side of fold axis. |
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