Welcome to the GitHub page for Mineralogy Analysis with TIMA

TIMA stands for TESCAN Integrated Mineral Analyzer (TIMA), a revolutionary instrument used for minerals and materials analysis. Because software designed for processing raw data from TIMA is not specifically designed for data analysis in sedimentology/stratigraphy, this repository is created in order to guide data processing, data analysis with TIMA for sedimentology/stratigraphy. The TIMA used in collecting data is from Automated Minerology Laboratory.

1 Objectives

• Automatically describe the texture of sedimentary rocks in thin sections (e.g. grain size, roundness, sphericity, sorting, textural maturity, etc.)
• Classify sedimentary rocks in thin sections with ternary diagrams

2 Introduction

2.1 Minerals and mineral groups

The TESCAN software requires an understanding of rock-forming minerals and their groups (correctly group minerals into brackets before starting data collection).

Rock-forming Minerals: The common rock-forming minerals include quartz, feldspars, pyroxenes, amphiboles, micas, clays, olivine, calcite, and dolomite. [1].

Therefore, we put together information being used for grouping minerals. Mineral groups are arranged alphabetically.

• The pyroxene/amphibole group: Augite, diopside, jadeite and spodumene, etc.([2])
• The aragonite group: aragonite, cerussite, strontianite, witherite ([3])
• The biotite mica group: annite, phlogopite, siderophyllite, fluorophlogopite, fluorannite, eastonite, and many others
• The blodite group: blodite, leonite, anapaite, schertelite, manganoblodite, cobaltoblodite, changoite ([(4])
• The calcite group: calcite, smithsonite, siderite, gaspeite, magnesite, otavite, rhodochrosite, sphaerocobaltite ([5],[6])
• The clay minerals group: kaolinite, halloysite, lizardite, chrysotile (kaolin-serpentine); pyrophyllite-talc; illite, glauconite, celadonite (mica); vermiculite; montmorillonite, nontronite, saponite (smectite); sudoite, clinochlore, chamosite (clorite); sepiolite-palygorskite ([(7])
• The dolomite group: ankerite, dolomite, kutnohorite, minrecordite, norsethite ([(8])
• The epidote group: clinozoisite, epidote, hancockite, mukhinite, niigataite, piemontite, tweddillite ([(9])
• The feldspar group: albite, amazonite, andesine, anorthite, anorthoclase, banalsite, buddingtonite, bytownite, celsian, dmisteinbergite, ferrisanidine, filatovite, hexacelsian, hyalophane, kokchetavite, kumdykolite, labradorite, microcline, oligoclase, orthoclase, paracelsian, reedmergnerite, rubicline, sanidine, slawsonite, stronalsite, stronalsite, sunstone, svyatoslavite ([(10])
• The garnet group: almandine, pyrope, spessartine, andradite, grossular, uvarovite ([(11])
• The halite group: carobbiite, griceite, halite, sylvite, villiaumite ([(12])
• The olivine group: forsterite, fayalte, monticellite, kirschsteinite, tephroite
• The pyroxenes group: augite, diopside, jadeite, and spodumene.
• The pyrite group: sperrylite, pyrite, krut'aite, etc. ([13])

Note: Use Venture Basin files as examples.

Link to the Jupyter Notebook

3 Associated Minerals for Each Mineral

• Find out the most associated mineral for each mineral

4 Ternary Diagram for Mineral Distribution

• Plot ternary diagram of mineral composition for thin section TODO: Improve: Density contour on ternary label each point

5 Image Processing for TIMA

• Object detection and roundness calculation

TODO:

• define function if neccessary

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References

[1] King, H. W. The Common Rock-Forming Minerals. Geology.com

[2] Pyroxene/amphibole group, mindat.org

[3] Aragonite group, mindat.org

[4] Blodite group, Wikipedia

[5] Calcite Group, mindata.org

[6] Calcite Group, galleries.com

[7] Clay Mienrals Group, britannica.com

[8] Dolomite Group, mindata.org

[9] Epidote Group, mindata.org

[10] Feldspar Group, mindata.org

[11] Garnet Group, mindata.org

[12] Halite Group, mindata.org

[13] Pyrite Group, mindata.org