In:
Sciences Géologiques. Bulletin, PERSEE Program, Vol. 45, No. 2 ( 1992), p. 99-107
Abstract:
Calcretes from Eastern Tunisia near Sousse. Climatical and historical significance Eastern Tunisia underwent important detritic deposits during the Quaternary ; they were carried by streams. These deposits contain carbonates which are vertically stratified ; their percentage increases upwards. In the Sahline-Metameur section, this cyclic evolution was repeated three times. The specific characteristics of each calcrete are strictly related to its age. The oldest is rather thick massive, highly indurated and salmon coloured ; the second is thin layered, less thick and less indurated than the first, its colour is beige ; the third is the most recent : it is little indurated, very thin and pink in colour. These calcretes seem to be very good climate markers ; in fact they are the result of hot and alternating climate cycles with long dry seasons favorable to calcrete formation.
Type of Medium:
Online Resource
ISSN:
0302-2692
DOI:
10.3406/sgeol.1992.1886
Language:
French
Publisher:
PERSEE Program
Publication Date:
1992
detail.hit.zdb_id:
192632-9
SSG:
13
Permalink