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concavo-convex

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concavo-convex

[kän¦kāv·ō·kän′veks]
(science and technology)
convexo-concave
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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References in periodicals archive
The effect of mechanical compaction on the Chang 7 sandstones is evidenced by concavo-convex contacts and the deformation of micas and plastic grains.
Diagenetic controls on reservoir quality of tight sandstone: A case study of the Upper Triassic Yanchang formation Chang 7 sandstones, Ordos Basin, China/Controles diageneticos en yacimientos de arenisca compacta: estudio de caso de las areniscas Chang 7, en la Formacion Yanchang, Triasico Superior, cuenca de Ordos, China
Achene 1.3-1.6 mm long, 0.9-1.1 mm wide, dark brown, obovate to elliptic-obovate, flattened-trigonous to more or less plano-convex or even slightly concavo-convex, rounded to more or less cuneate to a sessile base, rounded to the apex, with an indistinct collar and sometimes a very short apiculus, finely papillose; style branches reddish, feathery with elongate papillae.
Cypringlea (Cyperaceae) revisited, a new combination and status
However, the upper Khatkiara Member displays tight packing (concavo-convex grain contacts) and significant mechanical compaction.
DIAGENETIC STUDIES OF THE MID-TRIASSIC TREDIAN FORMATION IN THE SALT AND TRANS INDUS SURGHAR RANGES, PAKISTAN: IMPLICATIONS FOR RESERVOIR CHARACTERIZATION
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