| 单词 |
lit-par-lit |
| 释义 |
‖ lit-par-lit, a. Geol.|liparli|
[Fr., = ‘bed by bed’.]
Designating the intrusion of innumerable narrow, more or less parallel, sheets or tongues of magma into the bedding of rocks. Also as adv.
1896Q. Jrnl. Geol. Soc. LII. 635 In..1890..Mr. Horne obtained confirmatory evidence of the ‘lit par lit’ introduction of granitic materials into the crystalline schists south-west of Strath Halladale. 1902Ibid. LVIII. p. lxxv, M. Michel Lévy recognizes two types of intermixture: the one taking place by superposition, the other by injection lit par lit... In the latter type the compound rock consists of alternating folia of granite and sedimentary material. 1909F. H. Hatch Text-bk. Petrol. (ed. 5) I. 18 When the intrusion is repeated between many planes of stratification, it is known as lit-par-lit intrusion. 1925B. N. Odell in E. F. Norton Fight for Everest 1924 291 It is composed of dark horizontally banded biotite gneiss alternating with bands of light granite, though in the upper part of the cliff the latter is represented by pegmatite, and the whole appears to represent a large-scale example of lit-par-lit injection. 1962A. E. J. & C. G. Engel in A. E. J. Engel et al. Petrologic Stud. 42 The amphibolites are only locally shredded, injected lit-par-lit, or replaced by granite. 1968K. R. Mehnert Migmatites ix. 278 Banded gneisses and migmatites of the ‘lit-par-lit’-type follow. |
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