The horizontal course of a stratum of coal (cf. stretch, n., strike, n.1 8).
| 单词 | θ4732 |
| 释义 | the world > the earth > structure of the earth > structural features > sedimentary formation > [noun] > stratum > position or direction of strata (50) streak1672 The horizontal course of a stratum of coal (cf. stretch, n., strike, n.1 8). stretch1799 Mining and Geology. Course or direction of a seam or a stratum with regard to the points of the compass: = streak, n.1 5, strike, n.1 8. strike1829 Mining and Geology. The horizontal course of a stratum; direction with regard to the points of the compass. Cf. streak, n.1 5, stretch, n. 9. stroke1877 Geology. = strike, n.1 8. rare. Subcategories:— slope (7) — horizontal stratum (1) — upright stratum (1) — way up (1) — underground strata (2) — innermost strata (1) — superimposed condition (1) — interstratified condition (4) — homotaxy (2) — offlap or onlap (2) — narrowing (4) — overlap (1) — overstep (2) — outcrop (11) — load cast or sole-mark (3) — monoclinal strata (1) — relation of strata (2) |
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