Stylolite

Stylolite

), or dark organic matter.

The term stylolite is derived from the Greek for pillar, "stylo". Compare the French 'stylo' for pencil, and 'stylite' for 'pillar saint', an ascetic deliberately living standing on top of a pillar.

A stylolite is "not" a structural fracture, although they have been described as a form of 'anti-crack', with the sides moving together rather than apart [Fletcher, C.C. and Pollard, D.D. 1981 Anticrack model for pressure solution surfaces. Geology, 9, 419-24.] . Proof exists in the form of eg. fossiliferous limestones where fossils are crosscut by a stylolite and only one half still exists; the other half has been dissolved away. Rye & Bradbury (1988) [Rye, DM, and Bradbury, HJ (1988): Fluid flow in the crust: an example from a Pyrenean thrust ramp. American Journal of Science (288): 197-235.] investigated 13/12C and 18/16O stable isotope systematics in limestone on either side of a stylolite plane and found differences confirming different degrees of fluid-rock interaction.

References

* [http://www.glossary.oilfield.slb.com/Display.cfm?Term=stylolite Schlumberger Oilfield Glossary]
* [http://www.ias.ac.in/currsci/apr252002/1038.pdf S. Sinha-Roy, "Kinetics of differentiated stylolite formation", Current Science, V. 82, No. 8, 25 April 2002]


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  • stylolite — [stī′lə līt΄] n. [stylo < Gr stylos (see STYLITE) + LITE] a small, columnlike formation in a rock deposit, usually composed of limestone with grooved or scratched sides …   English World dictionary

  • stylolite — ● stylolithe ou stylolite nom masculin Dans les roches calcaires, figures en forme de pics soulignés par des traces d oxydes, résultant d une dissolution sous contrainte des carbonates …   Encyclopédie Universelle

  • stylolite — /ˈstaɪləlaɪt/ (say stuyluhluyt) adjective 1. of or relating to a column like structure found in certain limestones, the columns having grooved sides and being composed of limestone and generally at right angles or highly inclined to the bedding… …  

  • stylolite — stylolitic /stuy leuh lit ik/, adj. /stuy leuh luyt /, n. Geol. an irregular columnar structure in certain limestones, the columns being approximately at right angles to the bedding planes. [1865 70; STYLO 2 + LITE] * * * Sedimentary structure… …   Universalium

  • stylolite — noun An irregular surface between strata consisting of toothlike projections; most common in limestone and dolomite …   Wiktionary

  • stylolite —    An irregular suture like boundary developed along some bedding planes in limestones, probably caused by dissolution under pressure and possibly related in some cases to subsequent inception of speleogenesis [9 [ …   Lexicon of Cave and Karst Terminology

  • stylolite — sty·lo·lite …   English syllables

  • stylolite — …   Useful english dictionary

  • Pressure solution — or pressure dissolution in structural geology and diagenesis is a deformation mechanism that involves the dissolution of minerals at grain to grain contacts into an aqueous pore fluid in areas of relatively high stress and either deposition in… …   Wikipedia

  • Stylolith — Stylolithische Struktur im slowakischen Zarnov Marmor (Kalkstein), sie kreuzt eine tektonische Ader mit Calcitfüllung …   Deutsch Wikipedia

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