Electromagnetic Surveys - Phase Tensors (all periods)
Links
| Name | Description | Link | |
|---|---|---|---|
| Download MapInfo TAB file | Download MapInfo TAB file | ||
| Download Google Earth KMZ file | Download Google Earth KMZ file | ||
| Download ESRI Geodatabase file | Download ESRI Geodatabase file | ||
| Download ESRI SHP file | Download ESRI SHP file |
About this record
| Record No | mesac411 |
|---|---|
| Topic | Geoscientific Information |
| Type of Resource | Dataset |
| Category Type | |
| Document Type | |
| Contributor | |
| Sponsor | |
| Tenement | |
| Tenement Holder | |
| Operator | |
| Geological Province | |
| Other | |
| Mine Name | |
| Stratigraphy | |
| Commodity | |
| Notes | |
| Language | English |
| Metadata Standard | ISO 19115-3 |
| Use constraints | License |
|---|---|
| License | Creative Commons Attribution 4.0 |
| Persistent identifier | https://pid.sarig.sa.gov.au/dataset/mesac411 |
| Citation | Electromagnetic Surveys - Phase Tensors (all periods) https://pid.sarig.sa.gov.au/dataset/mesac411 |
| Status | On Going |
|---|---|
| Maintenance and Update Frequency | |
| Geographic Reference | GDA2020 (EPSG:7844) |
| Geo bounding box | {"type":"Polygon","coordinates":[[[129,-38],[141,-38],[141,-26],[129,-26],[129,-38]]]} |
| Purpose |
Magnetotelluric (MT) is a passive electromagnetic (EM) sounding technique - Measure variation in Earth's natural electrical (E) and magnetic (B) fields in time series - Ratio of E / B use to derive resistivity distribution of Earth's crust and... Magnetotelluric (MT) is a passive electromagnetic (EM) sounding technique - Measure variation in Earth's natural electrical (E) and magnetic (B) fields in time series - Ratio of E / B use to derive resistivity distribution of Earth's crust and upper mantle - Frequency range 10 kHz to 0.0001 Hz (0.0001 s to 10000 s) - Investigation depths of tens of metres to hundreds of kilometre |
| Lineage |
Prior to the 1990's stations were located using a combination of aerial photographs and maps. During the 1990's the Global Positioning System (GPS) came into use. Government, Industry and Academic datasets are included. Positional... Prior to the 1990's stations were located using a combination of aerial photographs and maps. During the 1990's the Global Positioning System (GPS) came into use. Government, Industry and Academic datasets are included. Positional accuracy:Accuracy is heavily dependent on the age of the data. |
Attribute details
| Name | Definition |
|---|---|
| ELECTROMAGNETIC SURVEY NO | Electromagnetic Techniques database survey number |
| SURVEY NAME | Name of survey |
| ELECT TECHNQ TYPE CODE | Geophysical technique type |
| SURVEY START DATE | Start date of survey |
| SURVEY END DATE | End date of survey |
| COLLECTED BY1 | Company that collected the data |
| COLLECTED BY2 | Company that collected the data (more than 1 company) |
| COLLECTED BY3 | Company that collected the data (more than 2 companies) |
| ORIGINATOR | Group responsible for the archived data |
| PROCESSING DATE | Date the data was processed |
| PROCESSING COMPANY | Company that processed the data |
| SADME_REF | SADME reference |
| TENEMENT | Exploration tenement type and number |
| SURVEY NOTES | Notes regarding the survey |
| SURVEY LINE NO | Survey line number |
| SURVEY STATION NO | Survey station number |
| SITE NO | Unique site number |
| Easting | MGA Easting |
| Northing | MGA Northing |
| Zone | MGA Zone |
| LONGITUDE | Longitude |
| LATITUDE | Latitude |
| FREQ | Frequency band |
| PERIOD | Period range |
| PLOT PERIOD GROUP | Displayed period ranges |
| ALPHA | Direction of the major axis |
| BETA | Skew angle |
| MAX PHASE | Maximum phase value |
| MIN PHASE | Minimum phase value |
| PHI MAX | Longest axis of the ellipsoid |
| PHI MIN | Shortest axis of the ellipsoid |
| AZIMUTH | Horizontal angle |