In structural geology, a syncline is a fold with younger layers closer to the center of the structure, whereas an anticline is the inverse of a syncline. A synclinorium (plural synclinoriums or synclinoria) is a large syncline with superimposed smaller folds.[1] Synclines are typically a downward fold (synform), termed a synformal syncline (i.e. a trough), but synclines that point upwards can be found when strata have been overturned and folded (an antiformal syncline).
A syncline is a fold of rocks with younger rock layers closer to the center of the structure, whereas an anticline is the inverse of a syncline.
On a geologic map, synclines are recognized as a sequence of rocklayers, with the youngest at the fold's center or hinge and with a reverse sequence of the same rock layers on the opposite side of the hinge. If the fold pattern is circular or elongate, the structure is a basin. Folds typically form during crustal deformation as the result of compression that accompanies orogenic mountain building.
^Bauer, Paul W.; Williams, Michael L. (August 1989). "Stratigraphic nomenclature ol proterozoic rocks, northern New Mexico-revisions, redefinitions, and formalization" (PDF). New Mexico Geology. 11 (3): 45–52. doi:10.58799/NMG-v11n3.45. Retrieved 15 April 2020.
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syncline, structural, geology, syncline, fold, with, younger, layers, closer, center, structure, whereas, anticline, inverse, syncline, synclinorium, plural, synclinoriums, synclinoria, large, syncline, with, superimposed, smaller, folds, typically, downward, . In structural geology a syncline is a fold with younger layers closer to the center of the structure whereas an anticline is the inverse of a syncline A synclinorium plural synclinoriums or synclinoria is a large syncline with superimposed smaller folds 1 Synclines are typically a downward fold synform termed a synformal syncline i e a trough but synclines that point upwards can be found when strata have been overturned and folded an antiformal syncline A syncline is a fold of rocks with younger rock layers closer to the center of the structure whereas an anticline is the inverse of a syncline Contents 1 Characteristics 2 Notable examples 3 Gallery 4 See also 5 ReferencesCharacteristics editOn a geologic map synclines are recognized as a sequence of rock layers with the youngest at the fold s center or hinge and with a reverse sequence of the same rock layers on the opposite side of the hinge If the fold pattern is circular or elongate the structure is a basin Folds typically form during crustal deformation as the result of compression that accompanies orogenic mountain building Notable examples editPowder River Basin Wyoming US Sideling Hill roadcut along Interstate 68 in western Maryland US where the Rockwell Formation and overlying Purslane Sandstone are exposed Foret de Saou syncline in Saou France The Southland Syncline in the southeastern corner of the South Island of New Zealand including The Catlins and the Hokonui Hills Strathmore Syncline Scotland Wilpena Pound Flinders Ranges South Australia Fort Valley Shenandoah County Virginia Hondo Syncline in the Picuris Mountains of New Mexico an example of an overturned syncline 2 Gallery edit nbsp Syncline exposed in Sideling Hill roadcut nbsp Snow dusted syncline in Provo Canyon Utah nbsp Road cut near Fort Davis Texas showing a syncline nbsp Rainbow Basin Syncline in the Barstow Formation near Barstow California nbsp Syncline in the lower parking lot of Calico Ghost Town the ductile folding is at the base and the brittle is above nbsp Synclinal fold in Silurian Wills Creek Formation or Bloomsburg Formation at Roundtop Hill Maryland nbsp East wall of Bear Valley Strip Mine near Shamokin Pennsylvania nbsp Syncline in Navajo Sandstone Upheaval Dome Canyonlands National Park Utah nbsp Satellite view of part of New Zealand s Southland Syncline showing parallel folds running northwest southeast nbsp Wilpena Pound a synclinal basin in the Flinders Ranges of South AustraliaSee also editAnticline Homocline Monocline Ridge and Valley AppalachiansReferences edit Synclinorium 2008 In Encyclopaedia Britannica Retrieved May 03 2008 from Encyclopaedia Britannica Online http www britannica com EBchecked topic 578375 synclinorium Bauer Paul W Williams Michael L August 1989 Stratigraphic nomenclature ol proterozoic rocks northern New Mexico revisions redefinitions and formalization PDF New Mexico Geology 11 3 45 52 doi 10 58799 NMG v11n3 45 Retrieved 15 April 2020 nbsp This article about structural geology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Syncline amp oldid 1220178515, wikipedia, wiki, book, books, library,
