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6 Cards in this Set
- Front
- Back
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basin shape is elongated and narrow. floor is volcanic basalt. both sides are bounded by normal faults. sediments deposited about the basalt are first, evaporites such as rock salt, then shallow marine carbonate muds. |
Basin- Continental Rift Boundary- divergent Ex- Red Sea |
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basin originates inland of an active mountain belt. deepest part of basin is directly adjacent to the mountaion belt, and the basin shallows towards the interior of the continent. |
Basin- Foreland Boundary- collision Ex- Appalachian Basin |
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basin is located seaward of a long mountain belt. shape is elongated. parallel to the mountains. the floor of the basin is complex group of shists (high p, relatively low temp metamorphic rocks). basin filled w/ sediments derived from the volcanic mountains and many seds are volcanic in origin. |
Basin- Forarc Boundary- subduction Ex- Cretaceous great valley |
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basin is rhombic-shaped, bounded by strike-slip and normal faults and fairly small in area compared to most other sed basins. floor is volcanic basalt. almost every formation in basin is bounded by unconformities esp along the margins of the basin. |
Basin- pull apart Boundary- transform Ex- Dead Sea |
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basin is actively receiving sediments and parallels the current coastline. oldest sediments in the basin were deposited on new volcanic oceanic crust, and consist of evaporites overlain by carbonates |
Basin- Passive Margin Boundary- non ex- gulf of mexico |
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basin is circular and located within the continental interior. basement rocks are the cratonic gneisses and granites of precambrian age that make up the core of the continental crust |
Basin- Intracratonic Basin Boundary- None Ex- Baltic Sea |
