SED-9
Collection:
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Fact sheet

SED-9

This is a lithic arenite with hematite rim and poikilotopic calcite cement. It is from the New Red Sandstone but the location is unknown.

About this collection

This collection of virtual thin sections is the result of a collaboration between earth scientists at Portsmouth University and The Open University. The collection consists of 26 slides from the Portsmouth teaching collection, including igneous, metamorphic and sedimentary rocks.

UNDER CONSTRUCTION! This Collection is currently under development, so you may notice reduced functionality as new samples are brought online.

Sample details

Collection: Portsmouth
Type
sedimentary
Category
arenite
Rock-forming mineral
quartz
orthoclase
Accessory minerals
hematite
calcite
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