GMC Minerals Details Explanation

Borehole Core Details Header

Item	Definition
Prospect Name	GMC listed prospect name
Borehole #	Core box borehole number
Company	Owner/consultant/drill company if available
Collection Type	General source of core donation (see details below)
Core Memo	Description of core size and sample's current form
Box(es)	Total box count available for hole
Details Explanation	This file

Collection Type

Value	Definition
Industry	Minerals Industry
Government Agency	Federal, State, and Educational Institutions
Geothermal	Geothermal projects
Engineering	Engineering projects
Fossil Fuels	Coal fields

Borehole Core Details

Item	Definition
Box	Core box number
Top	Top of sample interval in box
Bottom	Bottom of sample interval in box
Sample Form	Composite field of core size and sample type (see details below)
Sample Memo	Complex composite field adding box level details
Footer Reality Check	Link explaining limitations of inventory data
Footer Links	Links to GMC, contact, copyright, and privacy pages

Core Size

Value	Definition
E core	About 21.6/.85 (mm/in)
A core	About 27.0/1.1 (mm/in)
B core	About 36.5/1.4 (mm/in)
N core	About 47.6/1.9 (mm/in)
H core	About 63.5/2.5 (mm/in)
P core	About 85.0/3.3 (mm/in)
Mixed Core Sizes	Several different core diameters
Other	Such as chips or hand samples

Sample Type

Value	Definition
Whole	Undivided core
Half Cut	Core cut in half
Split	Core cracked in half
Chips	Pea-gravel chips of unknown preparation
Residue	Core fallen out of box
Mixed	Mixed core and hand samples
Hand	Hand samples
Empty	Core box is empty

Still have questions? Feel free to view the formal metadata.