Hercynian geosyncline

Hercynian geosyncline

[hər′sin·ē·ən ‚jē·ō′sin‚klīn]
(geology)
A principal area of geosynclinal sediment accumulation in Devonian time; found in south-central and southern Europe and northern Africa.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.