The science of structure, composition and development of Earth and other planets. Mostly concerned with planetary processes and resources.

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QGIS still not rendering WMS layers

Similar to Neil's question of March 8th 2013: QGIS not rendering WMS layers I can down load the BGS 1:50K bedrock and superficial deposits maps OK, but they don't render except at scales greater ...
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High Resolution Mineral Maps

Australia has recently published high resolution surface mineral maps using data from ASTER see here. Does anyone know of similar free products available for the entire globe?
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175 views

How to go with…somewhat complex geological maps in QGIS?

Just a follow-up to this question QGIS: Line to polygon conversion. Not sure do i have to continue there itself... We are currently digitizing a geological map...which has 36 features in total. Some ...
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73 views

QGIS: Line to polygon conversion

Currently we are working in a geological project..in which all the Contacts, Linear & some other geological features have to be captured. The thing is most of the features have to be Captured as ...
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132 views

Combining Geological Grids

I have a situation where I have 3 Geological grids, each showing a different horizon + the Seabed Grid. I need to extrude between these grids in order to make the 3D polygon for the geological ...
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115 views

application of gis in geology [closed]

I am a student of geophysics and I am studying geographic information systems (ArcGIS) and we have been given a project. As I do not have much information about GIS capabilities can you please suggest ...
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59 views

What expression returns data defined color from a color field eg: (30 50 40 10) using color_cmyk

Hi I have a geology plan with a base color field. I need to write an expression in the data defined color option using "color_cmyk" command. I can not seem to get the expression written correctly. The ...
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116 views

How to clip all shapefiles, layers, etc associated with global map of Mars

I'm working on a project where I've found an open source NASA .mxd of shapefiles, layers, metadata, geology, a 30x30 graticle that splits the lat and long into 30 degree square polygons, etc. I only ...
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377 views

How to color-code geology maps with given CMYK colors?

I'm trying to understand whether it is possible to corectly display colours in British Geological Survey maps. Our client has a licence to use the shapefiles but unfortunately BGS don't provide SDL ...
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88 views

Geology plug-ins for QGIS

Sorry this is probably a very basic question but I'm new to QGIS and struggling with it a fair bit. I'm trying to get a plugin to show me the geology (preferably solid and drift) of an area and have ...
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75 views

Is it possible to use USGS .shd files in QGIS?

Has anyone successfully used QGIS with US Geological Survey shd files to map geology - specifically to display colors and geological symbols (dip/strike etc) stored in a USGS supplied shd file. ...
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84 views

Identifying Intersections of Geology using PostGIS

I'm having problems identifying intersections on a layer of linework, the lines are representative of contacts and faults (geological rock formations). I am trying to select where there are connected ...
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122 views

Scanned Transparent Map Overlay

We have a flat file of 50 Geology maps that have a transparent overlay with faults and drill holes. I have them scanned and georeferenced as TIF images and they will be used in ArcGIS 10.0, 10.1 and ...
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How to merge many individual KML layers into one?

I'd like to open a USGS KML file of bedrock geology for an entire county, but there are over 2,000 individual polygon layers. Does anyone know if there is a way to merge all of these layers together ...
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372 views

Are there any free tools that can view and edit ArcGIS Map Packages?

I'm looking for a tool that can open ArcGIS Desktop 10 map packages (.mpk files) and allow in a simplified way for a third-party to add geology cross sections and well points. Any suggestions? It ...
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96 views

Looking For Free Global Bedrock Geology Data

I've searched around for a freely available global bedrock geology data set, but I have yet to find one. Anyone come across such dataset?
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846 views

What is the best way to visualize subsurface drillhole and borehole geology data within ArcGIS?

I've heard some folks in mining are using Target for ArcGIS extension by Geosoft to visualize and analyze subsurface drillhole and borehole geology data within ArcGIS. Does anyone have experience ...