| 释义 |
▪ I. † stope, n.1 Obs.
Also 6 stoppe.
[a. OF. estoup(p)e, estoppe:—L. stuppa tow, oakum. Cf. stupe.]
a. Tow for burning.
b. Oakum.
1552–3in Feuillerat Revels Edw. VI (1914) 108 A dragons mowthe of plate with stoppes to burne like fier. 1569R. Androse tr. Alexis' Secr. iv. i. 36 Take of the stope, or caulking which they take out of olde shippes.
▪ II. stope, n.2 Mining.|stəʊp|
[App. cogn. w. step n.1, but the phonological relation is obscure.]
†1. A step or notch in the side of a pit, or in an upright beam, to receive the end of a stemple or cross-piece. Also attrib. Obs.
1747Hooson Miner's Dict. S 4, Instead thereof in either end is made a Step or Stope with a Gouge, and the ends of the Forks sharpned like the Edge-end of a Stemple for to stand in those Stopes. 1824J. Mander Derbysh. Miners' Gloss. 69 Stope, a Hole or Step cut into the side or any other firm place, where there is occasion to set Stemples. 1836R. Furness Astrologer Gloss. Poet. Wks. (1858) 175 Stope and Coil, or Stope and Quoin. In ancient times, the stope was a hole bored in the rock, in order to introduce the quoin or wedge to burst it open.
2. A step-like working in the side of a pit.
1747Hooson Miner's Dict. U 2 b, Thus many men may work at once, taking each a Stope before him, one after another, and consequently raise more Ore. 1747Gentl. Mag. xvii. 327 On the 6th of April..there happened a very great explosion, which beat down a good deal of the partitions, and some of the stops [sic] under ground, and a part of the coal took fire by the damp. 1758Borlase Nat. Hist. Cornw. 169 The men work in stopes, that is, in several degrees or steps one above another. 1860Ure's Dict. Arts (ed. 5) III. 469 The overburden being removed, the clay is dug up in stopes: that is, in successive layers or courses, and each one being excavated to a greater extent than the one immediately below it, the stopes resemble a flight of irregular stairs.
b. attrib., as in stope-working; stope drill, a portable rock-drill, used in stoping.
1908Daily Report 27 Aug., Rand stope drills..enter the competition early next year. 1910Chamb. Jrnl. 7 May 358/2 By the time ‘stope’ working is commenced in the Cobalt silver-mines Canada will have first place among the silver-producing countries of the world.
▪ III. stope, v.|stəʊp|
[f. stope n.2]
1. trans. To cut (mineral ground) in stopes; to excavate horizontally, layer after layer; to extract (ore) by this process. Also with out. Also absol.
1778W. Pryce Min. Cornub. 142 They found it most adviseable to sink Shafts down upon the Lode, to cut it at some depth, and then to Drive and Stope east and west upon the course of the Lode. 1886Encycl. Brit. XXI. 230/2 The salt is stoped out in longitudinal and transverse galleries, and large vaulted chambers, supported by massive pillars. 1887Times (weekly ed.) 9 Dec. 1/7 Many thousands of tons of stone, richly laden with gold, are ready to be stoped. 1896Méliot Eng.-Fr. Dict. Terms Finance, etc. 226 Stope,..to break and extract the ore. Ibid., Stoping,..breaking out the payable ore.
2. Geol. Of magma or a magmatic body: to make its way by stoping; also, to subject to stoping.
1908Amer. Jrnl. Sci. CLXXVI. 19 The latter are regarded as then stoping their way up into the overlying shell. 1932F. F. Grout Petrogr. & Petrol. iii. 202 No batholith is known to have stoped its way to the actual surface. Ibid. 203 Some rocks are stoped and assimilated more readily than others. 1962W. T. Huang Petrology iv. 104 If the specific gravity is lower than the corresponding solid rock, a magma could stope its way into rocks of similar chemical composition.
Hence stoped ppl. a.
1932F. F. Grout Petrogr. & Petrol. iii. 203 The stoped blocks may dissolve before moving far. 1970K. C. Jackson Textbk. Lithol. ii. 38 The margin of the magma body becomes cluttered with scattered stoped blocks of wall rock.
▪ IV. stope
see step v., stoop n.1, v.1, stop n.2, v., stoup. |