S339 19 - Granodiorite
Collection:
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Object

Fact sheet

S339 19 - Granodiorite

Sample 109 from Open University Ph.D. thesis - A.G. Tindle (1982) Petrogenesis of the Loch Doon Granitic Intrusion, Southern Scotland.

This sample is also available in the UKVM collection.

Additional images
  • Width 2 cm
  • Width of specimen 5 cm
Map
55.214776, -4.449978
Description:
NE of Loch Riecawr, Galloway Forest, nearest town Dalmellington
Precision:
Good
About this collection

This collection consists of the rocks and thin sections used in the Open University modules.

The first set of samples are from the level 3 module Understanding the Continents. The theme of the module is crustal evolution in contrasting environments. It covers plate-tectonic processes including extensional regimes, subduction zone processes, and collisional processes such as the formation of the Himalaya. The module is intended for those with an understanding of the essentials of igneous and metamorphic rock-formation processes, plate-tectonic theory and structural processes.

Sample details

Collection: OU module rocks
Type
igneous
Category
granodiorite
Rock-forming mineral
quartz
microcline
biotite
amphibole
Accessory minerals
zircon
Category guide  
Category Guide
Title
Refers to any word or phrase that appears in the individual rock names. Names are generally descriptive; they allow users to search for broad terms like ‘granite’ as well as more specific names such as ‘breccia’. However, the adjacent descriptions of the specimens captures a wider range of general words and phrases and is a more powerful search tool.
Description
Refers to any word or phrase that appears anywhere in the descriptions of the specimens
Accessory minerals
Minerals that occur in very low abundance in a rock. They are usually not visible with the naked eye and contribute perhapssver, they often dominate the rare elements such as platinum group metals.
Rock-forming minerals
Minerals that make up the bulk of all rock samples and are also the ones used in rock classi?cation.
Timescale
Selecting one or more period, for example 'Jurassic'.
Theme
A term used to group together related samples that are not already gathered into a single Collection. For instance, there is a ‘SW England granites’ theme that includes such rock types as granite, hydrothermal breccia, skarn and vein samples.
Category
A general term used to label a rock sample. It is a useful way of grouping similar samples throughout a collection. Category names are often, but not exclusively, common rock names (e.g. granite, basalt, dolerite, gabbro, greisen, skarn, gneiss, amphibolite, limestone, sandstone).
Owner
The owner of the sample that appears in the collection. For example, NASA owns all the samples that appear in the Moon Rocks collection
We would like to thank the following for the use of this sample: