Type ArcGIS File Geodatabase (GDB) , ESRI Shapefiles (SHP)
This project provides the opportunity to identify potential critical mineral prospects that were either overlooked in the past due to lack of economic interest or were not analyzed for the critical minerals of importance today. This geochemical characterization project will enhance the Nova Scotia Mineral Occurrence Database to better assess the critical mineral potential in the province and expand and enhance publicly available geochemical data across Nova Scotia to better support the mineral exploration industry.
Six hundred sixty-seven (667) samples taken from core from 99 drillholes held at the Stellarton Core Library were chosen for geochemical recharacterization to enhance the data presented in historical drilling records around known mineral occurrences of Nova Scotia. This was done with an emphasis on modernizing some of the province's drillhole geochemical data and with a focus on highlighting previously unidentified critical minerals that may not have been analyzed by past operators and explorers at that time. Samples were selected to represent diverse geological environments for various mineral deposits found in Nova Scotia.
K. Neyedley; K.-D MacRae; D.T. Burden
This data is made available under the Nova Scotia Open Government Licence
| West | -66.5 | East | -59.5 |
| North | 47.25 | South | 43.25 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
9:00 a.m. to 5:00 p.m. AST Monday-Friday
Data Set ID = d550ns; Data Class = geochem; Project ID = Critical Metals
K. Neyedley; K.-D MacRae; D.T. Burden
9:00 a.m. to 5:00 p.m. AST Monday-Friday
This data is made available under the Nova Scotia Open Government Licence
This data is made available under the Nova Scotia Open Government Licence
There may be positional accuracy errors in the digital data that come from the original data collection, plus there are errors added by the process of digitizing the features from the original published source maps or field maps. The transfer of this data from older base maps onto the current base maps may also produce some error. The user should be aware that using this data overlaid on topographic data that was not used during the digital capture of the data may result in apparent errors in the locations of the data that may or may not be real. The user should always try and use background topographic data that is the same as the source topographic data noted in this metadata. The entire risk as to the quality and accuracy of the data is with the user and the user shall use his/her own judgment in making use of the data or drawing conclusions from it.
No conformance or quantitative report
An initial list of mineral occurrences across the province from the mineral occurrence database (MINOCC) and the diamond drillhole database (DDH) was compiled to identify which occurrences had been historically drilled and what holes are available at the Stellarton Core Library.
Assessment reports associated with the selected DDHs were compiled and examined to assess previous geochemical results and to identify potential zones of unsampled mineralization based on the drill logs. Many assessment reports only have results for minerals of economic interest at the time of drilling, leaving large and inconsistent gaps in our understanding of what critical minerals might be contained in these deposits.
Several holes from each occurrence were selected to be characterized in detail, while additionally DDH in the database not associated with mineral occurrence were selected for examination. DDH were examined at the Core Library for previously sampled zones and other intervals containing interesting mineralization that were not sampled, Considerations were made in choosing intervals for sampling such as quality, preservation, and quantity of available core (whole, half, or quarter core). After the initial desktop assessment and follow up core examination, 98 DDH were sampled and a total of 667 samples were selected for geochemical analysis. This comprised 50 mineral occurrences across the province in addition to numerous regional samples not associated with a specific mineral occurrence. A variety of mineral deposits styles were sampled including: • intrusion-related, • pegmatites, • porphyry Cu-Au-Mo, • Mississippi Valley Type, • volcanogenic massive sulphide, • manganese, • epithermal Au, • sediment-hosted Cu and Pb, • skarn systems, and • iron-oxide-copper-gold occurrences
Samples were sent to AGAT Laboratories Ltd. for analysis. All samples were analyzed by lithium borate fusion (whole rock analysis) by X-ray Fluorescence (XRF) to determine their major element oxide composition (AGAT package 11-320), 4 acid digest followed by ICP-OES/ ICP-MS for metal and trace element compositions (AGAT package 201-071), and lithium borate fusion with an ICP-MS finish for metals and full rare earth element compositions (AGAT package 201-078). Additionally, select samples will be analyzed by ICP-OES via Fire Assay for Au (AGAT package 202052) and by halogen ion chromatography for F concentrations (AGAT package 201-200). Deposit specific certified standards from Ore Research & Exploration Pty Ltd were included for quality control.
DP ME 550, Geochemical Recharacterization of Historical Drill Core Throughout Nova Scotia, Canada was released.
XY spatial coordinates for sample locations was derived from this database
Available: 9:00 a.m. to 5:00 p.m. AST Monday - Friday
ESRI file geodatabase feature class points - drill core locations
d550ns_Metadata_Themes_Fields_Value_Keys.xls
ESRI file geodatabase feature class points - sample locations
d550ns_Metadata_Themes_Fields_Value_Keys.xls
ESRI file geodatabase feature class points - drill core analysis hydrothermal
d550ns_Metadata_Themes_Fields_Value_Keys.xls
ESRI file geodatabase feature class points - drill core analysis granite
d550ns_Metadata_Themes_Fields_Value_Keys.xls
ESRI file geodatabase feature class points - drill core analysis sediment
d550ns_Metadata_Themes_Fields_Value_Keys.xls
9:00 a.m. to 5:00 p.m. AST Monday-Friday