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A series of posts outlining the morphology of important macrofossil invertebrate groups. This kind of information is useful for initial field IDs (but not specific taxonomies).
A series of posts outlining the morphology of important macrofossil invertebrate groups. This kind of information is useful for initial field IDs (but not specific taxonomies). https://www.geological-digressions.com/how-to-do-field-tasks/paleontology-for-sedimentologists/

 

392 articles, atlases, and glossaries to choose from

Herein you will find posts on Earth and planetary sciences, Art and Science and other digressions that focus on Science Communication and online resources for students of all disciplines, but particularly Geology. Post categories-topics are linked to the navigation bar or just head to the latest additions listed below.

I do this for the love of it. I do not receive any remuneration for the site (and I don’t advertise). The website (geological-digressions.com) is not attached or beholden to any organization.

A number of colleagues have kindly donated images for certain categories of posts. They are all acknowledged, usually in the caption to an image. They are also acknowledged in a Contributors Page.

The How to… articles are designed for geology students, providing outlines of method and theory for some of the basic tasks that geologists undertake in the field and lab. They are directed primarily at beginning and undergraduate geology students and anyone else wanting a reminder or primer, and as such are a bit more technical than other posts.

Peruse the Atlas series for images of different geological environments and processes, modern and ancient.

The Glossary has been compiled from terms used in this website. Links to the relevant posts are included. There are currently 11 glossaries and about 2400 entries.

And finally, if you would like to know something about me, where I’ve come from, where I’ve been – A geological life

If you use any of the images on this website, please follow the normal protocols for attribution – for example: Brian Ricketts or Geological Digressions followed by the article link/URL.

Archives
Categories
dip and strike compass
Measuring dip and strike
sandstone classification header
Classification of sandstones
Calcite cemented subarkose, Proterozoic Altyn Fm. southern Alberta
Sandstones in thin section
poles to bedding great circles
Stereographic projection – poles to planes
froude-reynolds-antidunes-header-768x439-1
Fluid flow: Froude and Reynolds numbers
Stokes Law for particle settling in a schematic context of other fluid flow functions
Fluid flow: Stokes Law and particle settling
sedimentary-basins-distribution-1-768x711
Classification of sedimentary basins
Model are representational descriptions are written in different languages - diagrammatic, descriptive, mathematical, and conceptual. They commonly contain variables and dimensionless quantities that permit quantitative analysis of the physical systems the models represent.
Geological models
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