up-dipadj.adv.
/ˈʌpdɪp/, U.S. /ˈəpˌdɪp/ (as adverb)Brit. /ˌʌpˈdɪp/, U.S. /ˌəpˈdɪp/ Geology.
A. adj.
Situated or occurring in a direction upwards along the dip.
ΘΚΠ
the world > the earth > structure of the earth > structural features > fold or dip > [adjective] > others
plagioclinal1879
isoclinal1882
downdip1904
ptygmatic1907
up-dip1916
1916 F. H. Lahee Field Geol. viii. 191 When a fault is approximately parallel to the strike of the strata, the block on the side of the fault toward which the dip of the beds is measured may be termed the down-dip block, and the other one is the up-dip block.
1965 G. J. Williams Econ. Geol. N.Z. xix. 345/1 Lenticularity of the sands may have prevented up-dip migration of the oil, although a slight arching of a 4° south-westerly dip may have assisted.
1974 R. D. Grace in P. L. Moore et al. Drilling Practices Manual xiii. 329 It predicts up~dip deviation when drilling into softer rock.
B. adv.
In an up-dip direction.
ΘΚΠ
the world > the earth > structure of the earth > structural features > fold or dip > [adverb] > others
synclinally1855
downdip1923
ptygmatically1928
isoclinally1936
up-dip1957
1957 G. E. Hutchinson Treat. Limnol. I. i. 156 The bays originated as artesian springs, which tended to migrate inland up-dip.
This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).
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adj.adv.1916- programma
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