Metadata
| Attributes forDescription of fields found in ArcView point shapefile D003NSDH.SHP, Drillholes, part of DP ME 003, Nova Scotia Drillholes Database |
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| Overview Description |
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Dataset Overview: |
The attributes described here come from the d003nsdh.shp point shapefile. This shapefile contains drillhole locations and attributes associated with them that were collected as part of the indexing of drillholes that took place in MRB until 2001 when the program was ceased. |
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On-Line Linkage |
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http//www.gov.ns.ca/natr/meb/download/md/dp003md.asp |
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Citation:(1 of 2) |
Indexing Guide to the Drillholes Database, April 16, 1998, |
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Citation:(2 of 2) |
Standard MRB GIS fields |
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| Detailed Description |
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| Data Table/Layer |
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Table Name: |
d003nsdh |
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Description: |
ArcView points - drillholes |
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Source: |
NSDNR MRB
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| Attribute Name: |
FID |
| Data Type: |
OID |
| Width: |
4 |
| Precision: |
0 |
| Scale: |
0 |
| Description: |
Internal feature number. |
| Definition Source: |
ESRI |
| Unrepresentable Values (1 of 1) |
| Value: |
Sequential unique whole numbers that are automatically generated. |
| Attribute Name: |
Shape |
| Data Type: |
Geometry |
| Width: |
0 |
| Precision: |
0 |
| Scale: |
0 |
| Description: |
Feature geometry. |
| Definition Source: |
ESRI |
| Unrepresentable Values (1 of 1) |
| Value: |
Coordinates defining the features. |
| Attribute Name: |
ID |
| Data Type: |
Number |
| Width: |
6 |
| Attribute Name: |
RECORD_KEY |
| Data Type: |
Number |
| Width: |
20 |
| Description: |
unique ID originally assigned by the Advanced revelations database |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
DHNUM |
| Data Type: |
Number |
| Width: |
20 |
| Description: |
This is a sequential number assigned to each individual drillhole. It represents the number of drillholes found in each NTS grid |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Value: |
unique values for each NTS sheet starting at 1 |
| Attribute Name: |
LOCALITY |
| Data Type: |
String |
| Width: |
75 |
| Description: |
This is the nearest geographic area to the drilling location. It is often named after a town or lake. |
| Definition Source: |
Indexing guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
COUNTY |
| Data Type: |
String |
| Width: |
75 |
| Description: |
The county in which the drilling took place |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
CLMAP |
| Data Type: |
String |
| Width: |
22 |
| Description: |
This is the NTS area in which the drillholes are located. The entry is composed of a letter number code defined as follows; NTS quadrant, backslash, followed by the particular 1:50000 map and which section it further falls into. To determine which NTS quadrant the drillhole is in, consult the Geoscan Authority or use the 1:1000000 map of Nova Scotia. The 1:50000 maps are divided into four sections (A, B, C and D). eg. a drillhole collared in Halifax would have Cl Map = 11D/12D and a drillhole in Yarmouth would have Cl Map = 20O/16A. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
TR |
| Data Type: |
Number |
| Width: |
11 |
| Description: |
The mining tract number that the drilling was done on. Each claim reference map sheet is sub-divided into 108 mining tracts numbered 1 - 108. Underground drilling can not be assigned a tract and claim due to the difficulty of locating the drillhole exactly. In the claim field the symbol "U/G" in entered |
| Definition Source: |
Indexing Guide |
| Range Domain Values (1 of 1) |
| Minimum Value: |
1 |
| Maximum Value: |
108 |
| Attribute Name: |
CL |
| Data Type: |
String |
| Width: |
2 |
| Description: |
The claim letter that the drilling was done on. Each mining tract is sub-divided into 16 claims. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Value: |
Letters A - Q excluding I |
| Attribute Name: |
ZONE |
| Data Type: |
Number |
| Width: |
11 |
| Description: |
The 6 degree UTM zone in which the drillhole is located |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| 19 |
UTM Zone 19 |
| 20 |
UTM zone 20 |
| 21 |
UTM zone 21 |
| Attribute Name: |
NORTHING |
| Data Type: |
String |
| Width: |
11 |
| Description: |
Northings are seven digit values. Since you cannot pinpoint the exact location of a drillholes, always round numbers to the nearest 10 ( e.g. an easting of 304452 would be entered as 304450). These fields are the numerical values, in meters, on the NAD-83 6 degree UTM grid which pinpoints the location of the drillhole. They may be generated by using the roamer on the 1:50000 maps or by using the conversion program if lat/long coordinates are known. In the last couple years of indexing coordinated were determined in ArcView using scanned and georeferenced maps. |
| Definition Source: |
Indexing Guide |
| Range Domain Values (1 of 1) |
| Minimum Value: |
200000 |
| Maximum Value: |
800000 |
| Attribute Name: |
EASTING |
| Data Type: |
String |
| Width: |
11 |
| Description: |
Easthings are six digit values. Since you cannot pinpoint the exact location of a drillholes, always round numbers to the nearest 10 ( e.g. an easting of 304452 would be entered as 304450). These fields are the numerical values, in meters, on the NAD-83 6 degree UTM grid which pinpoints the location of the drillhole. They may be generated by using the roamer on the 1:50000 maps or by using the conversion program if lat/long coordinates are known. In the last couple years of indexing coordinated were determined in ArcView using scanned and georeferenced maps. |
| Definition Source: |
Indexing Guide |
| Range Domain Values (1 of 1) |
| Minimum Value: |
200000 |
| Maximum Value: |
800000 |
| Attribute Name: |
LATITUDE |
| Data Type: |
String |
| Width: |
11 |
| Description: |
Latitude in degrees, minutes and seconds entered in the DD/MM/SS format. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Value: |
only values for Nova Scotia are valid, values vary |
| Attribute Name: |
LONGITUDE |
| Data Type: |
String |
| Width: |
11 |
| Description: |
Longitude in degrees, minutes and seconds entered in the DD/MM/SS format. All degree valueas are recorded as positive. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Value: |
only values for Nova Scotia are valid, values vary |
| Attribute Name: |
REFERENCE |
| Data Type: |
String |
| Width: |
55 |
| Description: |
This is the number assigned to each assessment report submitted to the Department. It is entered as; document code publication year-sequential number. Some options for the document code are: AR = assessment report, the most common form; OFR = open file report, common for NSDNR drillholes.For example the tenth assessment report from 1988 would be referenced as AR 88-010. older assessment report have a different form to the number and are documented as such in the DNR library. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
LICENSEE |
| Data Type: |
String |
| Width: |
99 |
| Description: |
The licencee is the person who has signed the licence on the property and in whose name the mineral rights lie. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
EXPLCO |
| Data Type: |
String |
| Width: |
99 |
| Description: |
The name of the company or individual who undertook the exploration of the property |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
REFEXPLCO |
| Data Type: |
String |
| Width: |
99 |
| Description: |
Enter the name of the company or individual who wrote the report. In some cases the report is written by a separate, contracted firm. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
DRILLCO |
| Data Type: |
String |
| Width: |
99 |
| Description: |
The name of the company contracted to do the drilling for the exploration company is entered in this field. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
CODHNO |
| Data Type: |
String |
| Width: |
33 |
| Description: |
This field contains the letter/number code the exploration company used to identify the core. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
RECORDNO |
| Data Type: |
String |
| Width: |
55 |
| Description: |
The record number is a number assigned to the drillhole by the curators of the core or by those documenting the assessment report if deemed necessary. This may arise when the documentation has not been explicit or the information has been lost. Often government drilling contains a record number for the core as opposed to a company drillhole number |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
YEAR |
| Data Type: |
String |
| Width: |
11 |
| Description: |
The year that the drillhole was completed. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Value: |
Values are 4 digit numbers from the 1800s until the present. |
| Attribute Name: |
DEPTH |
| Data Type: |
Number |
| Width: |
20 |
| Decimals: |
1 |
| Description: |
The length of the hole drilled in meters to one decimal place. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
COLLAR |
| Data Type: |
String |
| Width: |
11 |
| Description: |
The collar is another name for the elevation of the point at which the drill entered the ground. It is recorded in meters to one decimal place. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
DIP |
| Data Type: |
Number |
| Width: |
11 |
| Description: |
This is the attitude of the drill pipe as it entered the ground. The drill core is often deflected at depth, but this field reflects the initial angle from the horizontal. Enter the value as the nearest whole number. |
| Definition Source: |
Indexing Guide |
| Range Domain Values (1 of 1) |
| Minimum Value: |
-90 |
| Maximum Value: |
90 |
| Attribute Name: |
OVB |
| Data Type: |
Number |
| Width: |
20 |
| Decimals: |
1 |
| Description: |
This field contains the length, in meters to one decimal place, of overburden that was drilled through before bedrock was contacted. It may be referred to as casing. If the core was triconed in order for the drill pipe to penetrate this should be noted in the notes field. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
DHSAMPLE |
| Data Type: |
String |
| Width: |
22 |
| Description: |
The nature of the core material extracted from the ground is defined as one of the following: core, sludge or chip. Core is the most common sample but it is often accompanied by sludge samples. This field may hold more than one type of sample. Chips are extracted when a rotary drill is used instead of a diamond drill. |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| Attribute Name: |
SAMPLOC |
| Data Type: |
String |
| Width: |
22 |
| Description: |
The storage place for the core. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
MINERAL |
| Data Type: |
String |
| Width: |
55 |
| Description: |
The type(s) of mineralization observed in the core are listed in this field. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
COMMODITY |
| Data Type: |
String |
| Width: |
55 |
| Description: |
Two sets of data are entered here; the desired target for the drilling (e.g. gold would be AU) and the specific mineral or element that can be extracted from the mineralization (e.g. PB would be entered if Galena were present in the core). These are entered regardless of the magnitude of the mineralization. This field uses the chemical symbol, unlike the mineralization field. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
ASSAY |
| Data Type: |
String |
| Width: |
55 |
| Description: |
This field contains the chemical symbol for any elements the core has been analyzed for. A core that has been analyzed for many elements is given the abbreviation MEA for multi-element analyses. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
PALEO |
| Data Type: |
String |
| Width: |
22 |
| Description: |
Palaeontology is recorded in this field if any fossilization exists in the core |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| MAC |
macropalaeontolgy for specimens that can be seen in hand sample without visual aid (e.g. shells, roots, trace fossils). |
| MIC |
micropalaeontology for specimens requiring microscopes or visual aids (this includes algal stromatolites). |
| Pny |
palynology; if the core was examined for spores,pollen and/or other minute plant traces. |
| Attribute Name: |
DHLOG |
| Data Type: |
String |
| Width: |
22 |
| Description: |
The type of logs used to describe the core is entered in this field. |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| Ca |
Indexing Guide |
Caliper |
| Ga |
Indexing Guide |
Gamma Ray |
| Li |
Indexing Guide |
Lithologic |
| Ne |
Indexing Guide |
Neutron |
| Rad |
Indexing Guide |
Radiometric |
| Sp |
Indexing Guide |
Self Potiential |
| Den |
Indexing Guide |
Density |
| In |
Indexing Guide |
Induction |
| Lp |
Indexing Guide |
Lithopercentage |
| Po |
Indexing Guide |
Porosity |
| Rs |
Indexing Guide |
Resistivity |
| So |
Indexing Guide |
Sonic |
| Attribute Name: |
DHSECT |
| Data Type: |
String |
| Width: |
22 |
| Description: |
This is a yes/no field. If a diagram of the drillhole is included with the report then YES is entered in the field. |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| YES |
A diagram of the drillhole is included with the report |
| NO |
A diagram of the drillhole is not included with the report |
| Attribute Name: |
STRAT_UNIT |
| Data Type: |
String |
| Width: |
99 |
| Description: |
The stratigraphic units that the drillhole passed through are entered in this field. Consult the Lexicon of Canadian Stratigraphy Volume 6, Atlantic Region for stratigraphic unit dates and information. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
AGE |
| Data Type: |
String |
| Width: |
99 |
| Description: |
The geologic age of the stratigraphic units that the drillhole passed through are entered in this field. The geologic period is a sufficient entry. |
| Definition Source: |
Indexing Guide |
| Coded Value |
Definition Source |
Definition |
| Camb |
Indexing Guide |
Cambrian |
| Carb |
Indexing Guide |
Carboniferous |
| Cen |
Indexing Guide |
Cenozoic |
| Cret |
Indexing Guide |
Cretaceous |
| Dev |
Indexing Guide |
Devonian |
| Jur |
Indexing Guide |
Jurassic |
| Meso |
Indexing Guide |
Mesozoic |
| Miss |
Indexing Guide |
Mississippian |
| Ord |
Indexing Guide |
Ordovician |
| Pale |
Indexing Guide |
Paleozoic |
| Penn |
Indexing Guide |
Pennsylvanian |
| Perm |
Indexing Guide |
Permian |
| Phan |
Indexing Guide |
Phanerozoic |
| Prec |
Indexing Guide |
Precambrian |
| Prot |
Indexing Guide |
Proterozoic |
| Quat |
Indexing Guide |
Quaternary |
| Sil |
Indexing Guide |
Silurian |
| Tert |
Indexing Guide |
Tertiary |
| Tri |
Indexing Guide |
Triassic |
| Attribute Name: |
NOTES |
| Data Type: |
String |
| Width: |
99 |
| Description: |
Include any other pertinent information for the drillhole in this field. |
| Definition Source: |
Indexing Guide |
| Unrepresentable Values (1 of 1) |
| Attribute Name: |
E_U27Z20_M |
| Data Type: |
Number |
| Width: |
6 |
| Description: |
Easting UTM zone 20 NAD 27 in meters |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
N_U27Z20_M |
| Data Type: |
Number |
| Width: |
7 |
| Description: |
Northing UTM zone 20 NAD 27 in meters |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
E_U83Z20_M |
| Data Type: |
Number |
| Width: |
6 |
| Description: |
Easting UTM zone 20 NAD 83 in meters |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
N_U83Z20_M |
| Data Type: |
Number |
| Width: |
7 |
| Description: |
Northting UTM zone 20 NAD 27 in meters |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
UTM27_ZONE |
| Data Type: |
Number |
| Width: |
2 |
| Description: |
UTM zone using NAD 27 coordinates |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
LON_27_DD |
| Data Type: |
Number |
| Width: |
13 |
| Decimals: |
8 |
| Description: |
Longitude in decimal degrees in the NAD 27 datum |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
LAT_27_DD |
| Data Type: |
Number |
| Width: |
13 |
| Decimals: |
8 |
| Description: |
latitude in decimal degrees in the NAD 27 datum |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
UTM83_ZONE |
| Data Type: |
Number |
| Width: |
2 |
| Description: |
UTM zone using NAD 83 coordinates |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
LON_83_DD |
| Data Type: |
Number |
| Width: |
13 |
| Decimals: |
8 |
| Description: |
Longitude in decimal degrees in the NAD 83 datum |
| Definition Source: |
Standard MRB GIS field |
| Attribute Name: |
LAT_83_DD |
| Data Type: |
Number |
| Width: |
13 |
| Decimals: |
8 |
| Description: |
Latitude in decimal degrees in the NAD 83 datum |
| Definition Source: |
Standard MRB GIS field |
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