0077 Carbonate sand, Plage de St. Jean, St. Barthelmy

Carbonate sand, Plage de St. Jean, St. Barthelmy, Caribbean

Location:

Beach, Plage de St.Jean, St. Barthelmy, Caribbean

Provenance:

Diverse and typical mixture of carbonate fragments of marine provenance and some quite particular VRFs and MRFs of landward andesitic provenance

Composition:

Dominant white carbonate sand (CaCO3, calcite and aragonite); few fractions of quartz, chlorite?, hornblende, fine grained and dark mafic rock fragments (Lv), intermediary plutonic fragments, black obsidian

Petrographic thin section:

Characteristic "finger print" red algae, tubular serpulids, few benthic foraminifera, radial coralline sceletal fragments, angular echinoid plates

Texture:

Medium sand (ca. 350 µ), moderately sorted, subangular

Sample Number:

number of the sample

Collector:

Collector of the sand, Institution

Date:

Date of sampling

Comments:

Further comments on the sand, depositional history, ecc.