El Trigo

Occurrence in Sonora, Mexico with commodity Kaolin

Sections on this page

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

Geologic information

Identification information

Deposit ID	10023588
MRDS ID	I000710
Record type	Site
Current site name	El Trigo
Alternate or previous names	El Trigo De Corodepe
Related records	10280023

Geographic coordinates

Geographic coordinates:	-108.90061, 28.56691 (WGS84)
Relative position	7.5 KM SE OF THE TOWN OF EL TRIGO DE CORODEPE.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country	State
Mexico	Sonora

Commodities

Commodity	Importance
Kaolin	Primary

Materials information

Materials	Type of material
Kaolin	Ore
Montmorillonite	Gangue
Quartz	Gangue
Sericite	Gangue
Zircon	Gangue

Alteration

(Local) Hydrothermal

Analytical data

Result	ANALYES OF SAMPLES FROM SITE 1: 33.6-48.0% SIO2, 17.3-33.7% AL2O3, 1.98-4.92% FEO, 0.02-0.03% CAO, 0.02-0.04% MGO, 0.46-0.59% NA2O, AND 0.14-0.99% K2O. SITE 2: 29.8% SIO2, 27.4% AL2O3, 27.4% FEO, 0.02% CAO, 0.02% MGO, 0.59% NA2O, 0.48% K2O.

Host and associated rocks

Host or associated Host

Rock type Volcanic Rock (Aphanitic)

Stratigraphic age (youngest) Pliocene
Host or associated Host

Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Host or associated	Host
Rock type	Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1)	-108.90061, 28.56691	ListMap

Economic information

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Non-metallic
Deposit size	Small
Significant	No

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	I000710

Bibliographic references

Deposit

GONZALEZ S., J.R., 1985, RECURSOS MINERALES NO METALICOS Y ROCAS INDUSTRIALES DEL ESTADO DE SONORA: HERMOSILLO, SONORA, DIRECCION DE MINERIA, GEOLOGIA Y ENERGETICOS, 44 P
Reserve-Resource

GONZALEZ, 1985 [ FIRST FIGURE WAS ESTIMATED BY THE DIRECCION, THE SECOND WAS ESTIAMTED BY EL FIDEICOMISO DE MINERALES NO METALICOS].

General comments

Subject category	Comment text
Deposit	2 IRREGULAR ZONES OF KAOLIN 600 M APART OCCUR IN HYDROTHERMALLY ALTERED PYROCLASTICS. THE FIRST ZONE IS 70 M LONG AND 15 M WIDE. THE SECOND SITE IS SOUTHEAST OF THE FIRST AND IS 15 M LONG AND 8 M AND VERY NARROW. THE KAOLIN IS 4-5% QUARTZ BY VOLUME, 67-90% KAOLINITE, 3-5% OPAQUE MINERALS, 2-3% K-FELDSPAR, VARIABLE SERICITE AND MONTMORILLONITE, TRACES OF ZIRCON. ONE SAMPLE CONTAINED 20% SERICITE, ANOTHER SAMPLE CONTAINED 8% MONTMORILLONITE.

Subject category

Comment text

Deposit

2 IRREGULAR ZONES OF KAOLIN 600 M APART OCCUR IN HYDROTHERMALLY ALTERED PYROCLASTICS. THE FIRST ZONE IS 70 M LONG AND 15 M WIDE. THE SECOND SITE IS SOUTHEAST OF THE FIRST AND IS 15 M LONG AND 8 M AND VERY NARROW. THE KAOLIN IS 4-5% QUARTZ BY VOLUME, 67-90% KAOLINITE, 3-5% OPAQUE MINERALS, 2-3% K-FELDSPAR, VARIABLE SERICITE AND MONTMORILLONITE, TRACES OF ZIRCON. ONE SAMPLE CONTAINED 20% SERICITE, ANOTHER SAMPLE CONTAINED 8% MONTMORILLONITE.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-DEC-1990	Orris, Greta J.	U.S. Geological Survey

Beyond USGS

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