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Definition
| develops adjacent to an intrusion. |
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| metamorphism due only to the consequences of very deep burial |
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| Occurs by shearing ONLY without requireing temp of pressure change. |
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| process of how buried rocks end up back at the surface |
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Definition
| repetion of planar surfaces or layers in a metamorphic rock |
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| dark & light layerd metamorphic rock |
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Definition
| non-foliated rock which depends on the composition of the protolith & the temp & the pressure od metamorphism |
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| hydrothermal metamorphism |
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Definition
| hydrothermal fluids rising to the crust of the ocean floor basalt |
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Definition
| metamorphism of limestone |
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Definition
| save conditions of slate, a protolith of conglomerate composition |
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Definition
| distinct belt of metamorphic rock that forms around an igneous intrusion |
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Definition
| metamorphic mineral assemblegas indicative of a ceratin range of pressure & temp |
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Definition
| parallel alignment of platy minerals of alterning light & dark colored layers |
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Definition
| the intensity of metamorphism, the amount or degree of metamorphic change |
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Definition
| new minerals that grow only under metamorphic change |
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Definition
| a pre-exisiting rock that underges a solid-state change in response to enviornmental change |
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Definition
| grains have grown in place within the solid rock |
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Definition
| regions between 2 isograds; zones are named after an index mineral that wasn't in the previous lower grade |
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Definition
| process of change by a solid-state in response to an environmental modification |
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Definition
| changing a rock's chemical composition b reactions with hydrothermal fluids |
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Definition
| a foliation that roughly parallels that fault |
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Definition
| fine-grained metamorphic rock witha foliation caused by the preferred orientation of very fine-grained white mica |
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| preffered mineral orientation |
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Definition
| alignment of inequant minerals in a rock |
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Definition
| pre-exisint rock; "parent" rock |
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Definition
| metamorphism of pure quarts sandstone |
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Definition
| metamorphism affecting a large region |
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Definition
| medium to coarde grained metamorphic rock with large mica flakes |
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Definition
| vborad region of long-lived stable continental where Phanerzonic sedimentary cover was not deposited or eroded away |
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Definition
| knife-edge ridge, seperated by two cirques |
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Definition
| water or wet slurry holds the glacier above the underlying rock |
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Definition
| bowl-shaped depression carved by a glacier ont he side of a mountain |
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Definition
| vast ice sheets that spread over continental crust |
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Definition
| large crack developed by brittle deformation in a glacier |
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Definition
| glacier flow molding till & sediment into streamlined, elongated hills |
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Definition
| sediment that reached the toe & forms a pile |
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Definition
| boundary between the zone of accumilation & ablation |
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Definition
| boulders that have traveled a long ways ontop of a glacier |
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Definition
| ridges of sorted sand & gravel that were deposited in subglacial meltwater |
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Definition
| valleys cut by glaciers that are filled with seawater |
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Definition
| glacier grows into previous unglaciated regions |
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Definition
| glacier moves back toward that orgiin of the glacier |
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Definition
| scratches of troughs carved into the rock by the sediment embedded in ice at the base of a flowing glacier |
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Definition
| sediment transported by ice & depositedd on, beneath, or at the toe of the glacier |
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Definition
| slowing flowing masses if ice that survive the summer melt |
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Definition
| a glacially carved tributary valley whose floor lies at a higher elevation than the floor of the trunk valley |
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Definition
| mountain peak surrounded by at least 3 cirques |
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Definition
| climate was signifcantly colder & glaciers grew |
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Definition
| a large block of ice that calves off the front of a glacier & drops into the sea |
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Definition
| a circular depression in the ground made when a bloack of ice calves f the toe of a glacier & become buired by till, & later melts |
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| strips formed along the side edges of a glacier |
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| layers of fine-grained sediments deopisited from the wind |
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Definition
| debri in a stripe running down the interior of a glacier |
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Definition
| climate cycles that occur over tens to hundreds of thousands of years, because of changes in Earth's orbit & tilt. |
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Definition
| piles of rocks & dirt-used by Alpine farmers |
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Definition
| a glacier that exists in or adjacent to a mountain region |
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Definition
| annual thawing & refreezing that splits the ground into pentagonal & hexagonal shapes |
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Definition
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Definition
| the mass of ice slowly changes shape internally without breaking apart |
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Definition
| enhanced rainfall, lakes accumilated in low-lying land even at a great distance from the ice front |
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Term
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Definition
| atmospheric temp is so low that the glacier is well below the metling temp through out the years |
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Definition
| s hill's profile looks like a sheep lying in a meadow |
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Definition
| in polar climates sea surface freezes |
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Definition
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| a glacier that exists in regions where it is warm enough for liquid water to occur in films between the grains of ice |
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Definition
| end moraine at the farthest linit of glaciation |
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Definition
| glacier that has flowed into the sea |
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Definition
| leading edge or margin of the glacier |
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Definition
| glacial abrasion & plucking lower the sides of the floor |
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| subtracts snow from glacier |
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