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Geo-information work at China Geological Survey
3.3 Geophysical and geochemical databases
In the field of geological investigation and exploration, a series of databases have been completely developed and some of them are being updated each year. And most databases of this kind are integrated with its data processing system, such as regional gravity database in 2000, geophysical Borehole database in 2001, and aeromagnetic database at 1:1,000,000 scale in 2002. Aero-electromagnetic database is completed in 2001, which contains former survey data all around the country. Data collection of regional geochemical database will soon be completed. Stream sediment data were come form different 31 provinces around China. Multi-purpose geochemical data are also planned to collected into database, which were collected over the past three years both at regional agriculture strategy, environment study and city plan.
Table 2 is a brief list of these databases developed in China, mostly in CGS.
Table 2. Data format and database released by CGS
| No. |
Databese Name |
Software based |
Status |
| 1 |
1:500,000 digital geological map spatial database |
MapGIS |
Available |
| 2 |
1:200,000 digital geological map spatial database |
ArcInfo, MapGIS |
Partly available |
| 3 |
1:2,500,000 digital geological map spatial database |
MapGIS |
Available |
| 4 |
1:5,000,000 digital geological map spatial database |
MapGIS |
Available |
| 5 |
1:250,000 digital geological map spatial database |
ArcInfo, MapGIS |
On going |
| 6 |
1:50,000 digital geological map spatial database |
ArcInfo,MapGIS |
On going |
| 7 |
1:6,000,000 digital hydrogeological map spatial database |
MapGIS |
Available |
| 8 |
1:5,000,000 national geochemical anormaly |
ArcInfo, MapGIS |
AvailablePartly available |
| 9 |
1:5,000,000 national gravity anormaly |
MapGIS |
Available |
| 10 |
1:5,000,000 national aeromagnetic anormaly |
MapGIS |
Available |
| 11 |
1:200,000 digital hydrogeological map |
ArcInfo, MapGIS |
On goingPartly available |
| 12 |
Geophysical parameters of rocks |
ArcView |
Partly available |
| 13 |
1:200,000 heavy mineral database |
MapGIS |
Partly available |
| 14 |
1:50000 digital hydrogeological, engineering geological and geo-environmental
maps |
MapGIS |
Partly available |
| 15 |
1:500,000 digital geo-environmental maps |
MapGIS |
On going |
| 16 |
National solid mineral deposits and its distribution |
ArcInfo,MapGIS |
Available |
| 17 |
Dynamic monitor of groundwater |
MapGIS |
Partly available |
| 18 |
1:50,000 hydrology, engineering, environment and geology of key cities and economic
areas |
ArcInfo,MapGIS |
Partly available |
| 19 |
Rock property and distribution |
ArcInfo,MapGIS |
On going |
| 20 |
National solid mineral drill core |
|
Partly available |
| 21 |
Geophysical Logging |
ArcView |
Partly available |
| 22 |
National isotopic dating of rocks |
MS Access |
On going |
| 23 |
China Litho-stratigraphy/strata |
ASCII |
Available |
| 24 |
Aero-magnetics data |
Geosoft, |
Partly available |
| 25 |
Regional gravity |
MapInfo, MS Access |
Partly available |
| 26 |
Regional geochemistry (stream sediments) |
OpenInfo, SQL server |
Partly available |
| 27 |
Aero-electromagnetic |
SQL server |
Available |
| 28 |
Aero-radioactive |
SQL server |
On going |
| 29 |
Remote sensing |
PCI, Erdas |
Available |
| 30 |
Marine geology and mineral resources |
ArcInfo, Oracle |
On going |
| 31 |
Geological Trans section |
ArcInfo |
On going |
| 32 |
Digital geological reports and bulletins |
MS Wordand image |
Available |
| 33 |
Catalog of geological achieves |
MS Wordand image |
Available |
| 34 |
Catalog of national geological library |
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Available |
| 35 |
National geological relics |
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On going |
| 36 |
National geological hazards |
ArcInfo,MapGIS |
On going |
| 37 |
National geothermal and mineral water |
MS Access |
On going |
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