Loma Camastro

Producer in Guanacaste, Costa Rica with commodity Diatomite

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Host and associated rocks
Nearby scientific data
Ore body information
Economic information about the deposit and operations
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10106731
MRDS ID	I000188
Record type	Site
Current site name	Loma Camastro

Geographic coordinates

Geographic coordinates:	-85.49996, 10.81021 (WGS84)
Relative position	ON NATIONAL COORDINATES: 3722, 3100

Site location context

Political divisions (FIPS codes)

Guanacaste(province)

Costa Rica(country)

North America(continent)

Land(continent)

Geographic areas

Country	State
Costa Rica	Guanacaste

Commodities

Commodity	Importance
Diatomite	Primary

Comments on the commodity information

CURRENT PRODUCTION (1990) IS USED AS ANTI-CAKING AGENT FOR FERTILIZER. BULK DENSITY 242-299 KG/CUBIC M.

Materials information

Materials	Type of material
Diatomite	Ore
Cristobalite	Gangue
Quartz	Gangue

Host and associated rocks

Host or associated

Associated

Rock type

Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Stratigraphic age (youngest)	Pleistocene
Stratigraphic age (youngest)	Pleistocene

Host or associated Host

Rock type Sedimentary Rock > Clastic Sedimentary Rock > Lake Sediments

Host or associated	Host
Rock type	Sedimentary Rock > Clastic Sedimentary Rock > Lake Sediments

Nearby scientific data

(1)	-85.49996, 10.81021	ListMap

Economic information

Ore body information

Thickness 100M

Thickness	100M

Economic information about the deposit and operations

Development status	Producer
Commodity type	Non-metallic
Significant	No

Comments on the production information

APPROXIMATE ANNUAL PRODUCTION.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	I000188

Bibliographic references

Deposit

BERRANGE, J.P., MATHERS, S.J., MORALES C., NURY, AND ALVARADO V., FERNANDO, 1990, THE NON-METALLIC INDUSTRIAL MINERALS AND ROCKS OF COSTA RICA: SAN JOSE, COSTA RICA, PROYECTO ANGLO-COSTARRICENSE DE MINERALES INDUSTRIALES, 181 P
Other Database

CIMRI
Production

BERRANGE ET AL (1990).

General comments

Subject category	Comment text
Deposit	THE DIATOMITE FORMS PART OF A >100 M THICK LACUSTRINE SEQUENCE WHICH INFILLS A BASIN AT LEAST 5 SQ KM IN SIZE. IN THE NORTH PART OF THE BASIN, THE DIATOMITE FORMS THE UPPER PART OF THE SEQUENCE. INFERENCE FROM SURFACE EVIDENCE SUGGESTS THAT THE DIATOMITE MAY BE 80-100 M THICK LOCALLY. LOCALLY, THE DIATOMITE IS OVERLAIN BY AN ANDESITIC FLOW, BUT IN OTHER AREAS FORMS THE SURFACE ROCK. THIS IS THOUGHT TO BE THE LARGEST DIATOMITE DEPOSIT IN COSTA RICA.

Subject category

Comment text

Deposit

THE DIATOMITE FORMS PART OF A >100 M THICK LACUSTRINE SEQUENCE WHICH INFILLS A BASIN AT LEAST 5 SQ KM IN SIZE. IN THE NORTH PART OF THE BASIN, THE DIATOMITE FORMS THE UPPER PART OF THE SEQUENCE. INFERENCE FROM SURFACE EVIDENCE SUGGESTS THAT THE DIATOMITE MAY BE 80-100 M THICK LOCALLY. LOCALLY, THE DIATOMITE IS OVERLAIN BY AN ANDESITIC FLOW, BUT IN OTHER AREAS FORMS THE SURFACE ROCK. THIS IS THOUGHT TO BE THE LARGEST DIATOMITE DEPOSIT IN COSTA RICA.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-MAY-1990	Orris, Greta J.	U.S. Geological Survey
Updater	01-OCT-1994	Page, Norman J.	U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.