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Annular drainage pattern
| Глоссарий геологических терминов |
A drainage pattern in which subsequent streams follow a roughly circular or concentric path along a belt of weak rocks, resembling in plan view, a ring-like pattern where the bedrock joints or fracturing control the parallel tributaries. it is best displayed in streams draining a maturely dissected granitic or sedimentary structural dome or basin where erosion has exposed rimming sedimentary strata of greatly varying degrees of hardness, as in the red valley which nearly encircles the domal structure of the black hills, sd. sw & gg & wa
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Subsequent, английский
Последующий
Concentric, английский
- Концентрический
- Curved lines or surfaces having a common center of curvature.
- Having a common center.
Fracturing, английский
The process of a fluid (usually crude oil, diesel or water) being pumped into the reservoir to break the reservoir rock open.
Sedimentary, английский
Structural, английский
- Структурный; конструктивный
- Said of a load-bearing member, element, etc., of a building.
- A структурный analysis, class, description, linguistics, metaphor, order, phonologist, phonology, series, signal, system
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Anthropogenic feature, английский
An artificial feature on the earth’s surface (including those in shallow water), having a characteristic shape and range in composition, composed of unconsolidated earthy, organic materials, artificial materials, or rock, that is the direct result of human manipulation or activities; can be either constructional (e.g., artificial levee) or destructional (quarry). sw
Alpine glacier, английский
A) any glacier in a mountain range except an ice cap or ice sheet. it usually originates in a cirque and may flow down into a valley previously carved by a stream. compare - continental glacier. gg
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