syncline


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to syncline: plunging fold

syncline

a downward fold of stratified rock in which the strata slope towards a vertical axis
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Syncline

 

a fold of stratified rock that is convex downward. Younger rocks occur in a syncline’s core rather than on its limbs. Synclines alternate with anticlines— folds of rock strata that are convex upward.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

syncline

[′sin‚klīn]
(geology)
A fold having stratigraphically younger rock material in its core; it is concave upward.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The part of the section of most interest lies in the southern (northward-dipping) limb of the syncline around a large headland where the first sandstone-siltstone interbeds appear above the lower, uniform red mudstone.
The large-tired transporter towed loads, typically about 64 tons of bagged coal, to a lagoon five miles from the Deaffall Syncline for barge delivery.
The formation can be traced 30 km to the east along the north limb of the Athol Syncline to Styles Brook (Ryan et al.
The Wilkoszyn Syncline has been selected to present study because it gives the opportunity to make study on the carbonate rocks of the Gogolin Beds, the Lower Mushelkalk series (Fig.
They lie in a regular syncline. The richest is the first, or topmost, bed while the most interesting commercially is the second bed, which has a thickness of 30 to 35 m.
The graphitic unit at the base of the Sheep Creek Member is a distinctive marker horizon along the northern limb of the targeted syncline representing an equivalent horizon to that hosting the high-grade WTF massive sulphide mineralisation, where the Inferred Mineral Resource for WTF1 stands at 6.7Mt at 6.2% zinc, 2.8% lead, 189 g/t silver and 1.1 g/t gold for a grade of 14.4% ZnEq2 .
The phosphorite is found on the both limbs of syncline. Western limb has 3,033m and eastern limb 1,062m outcrop length with 3 to 8m variable thickness.
These limestone members form three superstructures denominated as the Casavegas Syncline, Redondo Syncline and Castilleria Syncline (Wagner et al., 1983; Wagner 2009).
The phosphorus levels in the deposit are generally high, however a distinct zone of higher grade material has lower P values in the keel of the syncline.