geological gis papua-new-guinea_irian-jaya_2014

7
PAPUA NEW-GUINEA / IRIAN JAYA Geological GIS database (Stratigraphy, beddings, folds, faults and fractures network) UPDATED 2014

Upload: tti-production

Post on 02-Jul-2015

399 views

Category:

Data & Analytics


1 download

DESCRIPTION

Geological GIS project on PAPUA NEW-GUINEA / IRIAN JAYA This database covers the entire Papua New-Guinea Island including the Irian Jaya part. Total area is 820 000 Km² running between longitudes E131° and 151°20’ and latitudes N0° and S10°50’. The New Britain Island (NE of Papua) is not covered. Papua New Guinea is characterized by rugged topography, cloud coverage, dense vegetation canopy and extreme natural conditions resulting in poor geological map coverage. Satellite images analysis proved to be a good mean to update available low to medium scale maps by morphostructural adjustment and spatial correlation over large distances. Multi-scale and multi-source satellite data have been integrated in a coherent orthorectified GIS database, to produce an adjusted and refined geological map. Projection of project is Tranverse Mercator/ WGS 84. Scale of interpretation and digitization is ranging from 1:100 000 to 1:250 000 and special attention has been brought to minimize discrepancies between various original maps and authors (Geologic spatial coherency).

TRANSCRIPT

Page 1: Geological gis papua-new-guinea_irian-jaya_2014

PAPUA NEW-GUINEA / IRIAN JAYAGeological GIS database

(Stratigraphy, beddings, folds, faults and fractures network)

UPDATED 2014

Page 2: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYGENERAL INFORMATION

Thematic and geologic layers included:

1. Bedding contours,2. Recent deposits, lakes and main hydrography,3. Geology and stratigraphic contours,4. Faults and morpho-lineaments 5. Fold axis,6. Dips processed with SIGEOL® and SRTM,7. Morphostructural dips.

Deliverables DVD or Secured FTP :

1. BDGEOL® Surface Geology (ArcGIS format) 2. ORTHOCOVERAGE® satellite cover (Geotiff format) including:

3. 90m Digital Elevation Model4. 50m SAR L band (4 tiles)5. 28,5m Landsat TM/ETM7 color composite

6. Report on Surface Geology and methodology (pdf format)7. A set of 10 paper-sheet maps at 1:500 000 scale (high gloss A0).8. A set of 10 maps at 1:500 000 scale (pdf format).

Production year : 2009, updated in 2014

Country : Irian-Jaya / Papua New Guinea

Data format : Digital

CONTACT :

PRICE ON DEMAND

Page 3: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYPROJECT PRESENTATION

This BDGEOL® covers the entire Papua New-Guinea Island including the Irian Jaya part. Total area is 820 000 Km² running between longitudes E131° and 151°20’ and latitudes N0° and S10°50’. The New Britain Island (NE of Papua) is not covered.

Papua New Guinea is characterized by rugged topography, cloud coverage, dense vegetation canopy and extreme natural conditions resulting in poor geological map coverage. Satellite images analysis proved to be a good mean to update available low to medium scale maps by morphostructural adjustment and spatial correlation over large distances. Multi-scale and multi-source satellite data have been integrated in a coherent orthorectified GIS database, to produce an adjusted and refined geological map. Projection of project is Tranverse Mercator/ WGS 84.

Page 4: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYPROJECT PRESENTATION

Surface geology is interpreted using Geomorphostructural photo-analysis of orthorectified SAR 50m images (L band) combined with LANDSAT TM5/ETM7 visible to near IR color composite (28,5m). Digital mapping is performed using advanced GIS topology and photo-interpretation of anaglyph products for better understanding of structural framework and fault pattern. SRTM Digital Elevation Model at 90m has been extensively used for Geomorphostructural analysis and topographic adjustment of structural features. Active tectonic features such as stream deviation, visible fault scarps and geomorphic facets have been correlated when possible to the structural framework.

Surface Geology is based on available low scale geological maps, 1:1 000 000 and 1:500 000, bibliography and sparse 1:250 000 scale maps for detailed correlation within homogeneous stratigraphic intervals. Scale of interpretation and digitization is ranging from 1:100 000 to 1:250 000 and special attention has been brought to minimize discrepancies between various original maps and authors (Geologic spatial coherency).

Geologic and structural features reported are fully controlled by photo-interpretation and the spatial adjustment falls within a 2 pixels RMS (100m). Georeferencing is based on satellite coordinates controlled by available topography (SRTM) and some wells coordinates.

The BDGEOL® Product package over Papua New-Guinea is provided as a GIS vector layer, an orthorectified remote sensing coverage (SAR + LANDSAT), and a technical report with results on Geology and the methodology of interpretation.

Page 5: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYMETHODOLOGY

Methodology for stratigraphic calibration using SAR texture analysis (Bird’s head region)

20 Km

Refined vector map

Original raster map

Original raster map

Refined vector map

Business dealGeological data on Irian Jaya – New GuineaBusiness dealGeological data on Irian Jaya – New Guinea

Page 6: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYON COMMAND 1:50 000 detail areas

With new satellite technology, you can upgrade the database up to 1:50,000 scale. Ask for a mapping of your blocks.

Original 150K GIS Database Refined 50K GIS Database

1:150K

1:50K

Page 7: Geological gis papua-new-guinea_irian-jaya_2014

REMOTE SENSING O&G STUDYON COMMAND 1:50 000 detail areas

With new satellite technology, you can upgrade the database up to 1:50,000 scale. Ask for a mapping of your blocks.

Original 150K GIS Database Refined 50K GIS Database

1:150K

1:50K