Paleostress

Paleostress is a term used in geology (specifically in the fields of structural geology and tectonics) to indicate mechanical stress that has affected rock formations in the geological past.

In practice, a paleostress tensor may be quantified based on the measurement of certain geological structures (e.g. faults), whose specific geometries and spatial organization are theoretically linked to the parameters of the tensor (see paleostress inversion). The latter are quantified through inversion of the structures measured in the field (or potentially on rock samples in the lab).[citation needed]

Paleostress is a subset of mechanical stress within geology. Variations in stress fields within the Earth's crust can result in a variety of mechanical responses:

  • Microscopic:
  • Macroscopic:

Traditionally, deformations (either folding or fracturing—without dissolution) are collectively termed mechanical strain. Both macroscopic and microscopic strain may be elastic, and only exist as long as differential stress exists, or it may be inelastic -- that is the deformation due to a particular stress event remains even after the stress is removed. In the latter case, inelastic deformation, the stress field responsible for the deformation if it can be inferred, is, then, the paleostress. Anderson's classic analysis of faulting serves as a simple application of paleostress analysis in terms of principal components of stress.[1]

Zoback and Zoback's (1986) synthesis of contemporary stress measurements in North America[2] was subsequently expanded to a global study[3] which continues as the World Stress Project.

A number of regional studies of paleostresses has been undertaken, including Europe;[4] North America;[5][6] and Australia.[7]

References

  1. ^ Anderson, E. M., 1951, The Dynamics of Faulting and Dyke Formation, 2nd ed., Oliver & Boyd, Edinburgh.
  2. ^ Zoback, M., and Zoback, M., 1986, DNAG volume
  3. ^ Zoback, M., et al., 1989, World Stress Project, Nature.
  4. ^ Bergerat, F., 1987. Stress fields in the European Platform at the time of Africa-Eurasia collision. Tectonics, 6(2): 99-132.
  5. ^ Bird, P., 2002, Stress direction history of the western United States and Mexico since 85 Ma, Tectonics, VOL. 21, NO. 3, doi:10.1029/2001TC001319, 2002.
  6. ^ Pilger, R. H., Jr., 2003, Geokinematics: Prelude to Geodynamics, Springer-Verlag, Berlin., 2003)
  7. ^ Pilger, R. H., Jr. 1982, The origin of hotspot traces: evidence from eastern Australia, J. Geophys. Res., 87(B3), 1825–1834, doi:10.1029/JB087iB03p01825

Read other articles:

Babak gugur Piala Emas CONCACAF 2019

Babak gugur Piala Emas CONCACAF 2019 dimulai pada 29 Juni dengan pertandingan perempat final dan berakhir pada 7 Juli 2019 dengan pertandingan final di Soldier Field, Chicago.[1][2] Format Pada babak gugur, jika pertandingan imbang hingga akhir 90 menit waktu bermain normal, perpanjangan waktu akan dimainkan (dua babak, masing-masing babak 15 menit), di mana setiap tim diizinkan untuk melakukan pergantian pemain keempat. Jika masih imbang setelah perpanjangan waktu, pertanding...

 

Istana Chaotian

Istana ChaotianNama asli Hanzi: 朝天宫; Pinyin: Cháotiān GōngGerbang depan menuju Istana ChaotianLetakJalan Mochou, Nanjing, TiongkokKoordinat32°02′06″N 118°46′30″E / 32.035°N 118.775°E / 32.035; 118.775Koordinat: 32°02′06″N 118°46′30″E / 32.035°N 118.775°E / 32.035; 118.775ArsitekturDinasti Ming Istana Chaotian (Hanzi: 朝天宫; Pinyin: Cháotiān Gōng, arti harfiah Istana Penghormatan Langit), ad...

 

Pulau Sawu

SawuPeta kepulauan Nusa Tenggara Timur, termasuk Sawu.GeografiLokasiLaut SawuKoordinat10°29′S 121°54′E / 10.483°S 121.900°E / -10.483; 121.900Koordinat: 10°29′S 121°54′E / 10.483°S 121.900°E / -10.483; 121.900KepulauanNusa TenggaraLuas421.42 km2Titik tertinggi366PemerintahanNegara IndonesiaProvinsiNusa Tenggara TimurKependudukanPenduduk80,377 jiwa (Sensus 2020)Kepadatan191 jiwa/km2 Raja Liae dan para ...

مقاطعة سبوتسيلفانيا (فيرجينيا)

مقاطعة سبوتسيلفانيا    علم شعار   الإحداثيات 38°11′N 77°39′W / 38.18°N 77.65°W / 38.18; -77.65  [1] تاريخ التأسيس 1721  تقسيم إداري  البلد الولايات المتحدة[2][3]  التقسيم الأعلى فرجينيا  العاصمة سبوتسيلفانيا كورتهووس  التقسيمات الإدارية سبوتسي...

 

Code of the United States Fighting Force

Code of conduct The Code of the U.S. Fighting Force is a code of conduct that is an ethics guide and a United States Department of Defense directive consisting of six articles to members of the United States Armed Forces, addressing how they should act in combat when they must evade capture, resist while a prisoner or escape from the enemy. It is considered an important part of U.S. military doctrine and tradition, but is not formal military law in the manner of the Uniform Code of Military J...

 

Chromium(II) iodide

Chromium(II) iodide Names Other names chromous iodide Identifiers CAS Number 13478-28-9 3D model (JSmol) Interactive image ChemSpider 13318420 PubChem CID 18626753 CompTox Dashboard (EPA) DTXSID20595261 InChI InChI=1S/Cr.2HI/h;2*1H/q+2;;/p-2Key: BMSDTRMGXCBBBH-UHFFFAOYSA-L SMILES [Cr+2].[I-].[I-] Properties Chemical formula CrI2 Molar mass 305.8050 g·mol−1 Appearance black deliquescent solid Density 5.196 g/cm3 Except where otherwise noted, data are given for materials in...

The Windblown Hare

1949 filmThe Windblown HareDirected byRobert McKimsonStory byWarren FosterProduced byEdward Selzer (uncredited)StarringMel BlancBea Benaderet (uncredited)Jim Backus (uncredited)Edited byTreg Brown (uncredited)Music byCarl W. StallingAnimation byCharles McKimsonPhil DeLaraManny GouldJohn CareyLayouts byCornett WoodBackgrounds byRichard H. ThomasColor processTechnicolorProductioncompanyWarner Bros. CartoonsDistributed byWarner Bros. PicturesThe Vitaphone CorporationRelease date August 27,&...

 

Toledo, Washington

City in Washington, United StatesToledo, WashingtonCityShops on Cowlitz Street, Toledo, Washington (2019)Location of Toledo, WashingtonCoordinates: 46°26′21″N 122°50′53″W / 46.43917°N 122.84806°W / 46.43917; -122.84806[1]CountryUnited StatesStateWashingtonCountyLewisArea[2] • Total0.40 sq mi (1.03 km2) • Land0.39 sq mi (1.02 km2) • Water0.00 sq mi (0.01 km2)Ele...

 

البلديخو (سيوداد ريال)

  البلديخو (بالإسبانية: Albaladejo)‏[1]   - بلدية -    البلديخو (سيوداد ريال) البلديخو (سيوداد ريال) تقسيم إداري البلد إسبانيا  [2] المقاطعة مقاطعة ثيوداد ريال خصائص جغرافية إحداثيات 38°37′05″N 2°48′22″W / 38.618055555556°N 2.8061111111111°W / 38.618055555556; -2.8061111111111...

協約國

  提示：此条目介绍的是一战期间两个对敌的交战方之一，请勿将其与三國協約混淆，后者是一战之前形成的一个同盟。 此條目没有列出任何参考或来源。 (2011年10月9日)維基百科所有的內容都應該可供查證。请协助補充可靠来源以改善这篇条目。无法查证的內容可能會因為異議提出而被移除。 協約國1914年—1918年協約國「四大巨頭」：法國總理克列孟梭、英國首相勞...

 

Casimiro de Abreu

Brazilian poet, novelist and playwright For other uses, see Casimiro de Abreu (disambiguation). This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: Casimiro de Abreu – news · newspapers · books · scholar · JSTOR (January 2024) Casimiro de AbreuBornCasimiro José Marques de Abreu(1839-01-04)4 January 18...

 

Hernia ventralis

Sel tumor yang dianggap hernia ventralis Hernia ventralis adalah keadaan dimana terdapat tonjolan yang berasal dari dinding perut, sering kali pada bagian tengahnya.[1] Namun, dapat terjadi pada setiap lokasi di dinding perut.[1] Seringkali disebut pula hernia insisional karena sering terbentuk pada bagian sayatan pasca operasi dimana kulit telah menjadi lemah atau tipis.[1] Jaringan perut atau bagian dari usus dapat mendorong melalui daerah melemah ini, menyebabkan ra...

Pelapukan angkasa

Sebuah ilustrasi yang menggambarkan komponen pelapukan angkasa yang berbeda. Pelapukan angkasa adalah jenis pelapukan yang terjadi pada objek apa pun yang tidak terlindungi dari lingkungan luar angkasa yang keras. Benda langit yang tidak memiliki atmosfer (termasuk Bulan, Merkurius, asteroid, komet, dan sebagian besar satelit alami planet-planet lain) mengalami banyak proses pelapukan: tubrukan sinar kosmik galaksi dan sinar kosmik matahari iradiasi, implantasi, dan sputtering dari partikel a...

 

Keizo Saji

Japanese businessman and art patronKeizo Saji Keizō Saji (佐治敬三, Saji Keizō, November 1, 1919 – November 3, 1999[1]) was a Japanese businessman and art patron.[2] He was the 10th richest man in the world in 1987 according to Forbes, with a net worth of 4.0 billion dollars. Early life He was the son of Shinjiro Torii who founded Suntory. The Japanese company is a maker of beer and whiskey.[2] Career Saji was the founder of the Suntory Art Museum and the Sunto...

 

Othello Air Force Station

Radar station in Washington, US 1951–1975 Othello Air Force Station Part of Air Defense Command (ADC)Othello AFSLocation of Othello AFS, WashingtonCoordinates46°43′17″N 119°10′48″W / 46.72139°N 119.18000°W / 46.72139; -119.18000 (Othello AFS P-40)TypeAir Force StationSite informationControlled by United States Air ForceSite historyBuilt1951In use1951–1975Garrison informationGarrison637th Aircraft Control and Warning Squadron (late...

How Great Thou Art (The Statler Brothers album)

1969 studio album by The Statler BrothersOh Happy DayStudio album by The Statler BrothersReleased1969GenreCountry GospelLength30:12LabelColumbiaProducerGeorge RicheyThe Statler Brothers chronology Sing The Big Hits(1967) Oh Happy Day(1969) Bed of Rose's(1970) Oh Happy Day is the third studio album by the Statler Brothers and the last one recorded for Columbia Records. O Happy Day was the lone single.[1] Track listing O Happy Day (Edwin Hawkins) How Great Thou Art (Carl Boberg)...

 

Milan-San Remo 1927

Cet article est une ébauche concernant le cyclisme. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Milan-San Remo 1927GénéralitésCourse 20e Milan-San RemoDate 3 avril 1927Distance 285,5 kmPays traversé(s) ItalieLieu de départ MilanLieu d'arrivée San RemoCoureurs au départ 111Coureurs à l'arrivée 71Vitesse moyenne 29,485 km/hRésultatsVainqueur Pietro ChesiDeuxième Alfredo BindaTroisième Do...

 

Worry

Thoughts, images, emotions, and actions of a pessimistic nature Worriers redirects here. For the band, see Worriers (band). For other uses, see Worry (disambiguation). Part of a series onEmotions Affect Classification In animals Emotional intelligence Mood Self-regulation Interpersonal Dysregulation Valence Emotions Acceptance Admiration Affection Amusement Anger Angst Anguish Annoyance Anticipation Anxiety Apathy Arousal Awe Belongingness Boredom Confidence Confusion Contempt Contentment Cou...

2009 au cinéma

Chronologies Données clés 2006 2007 2008  2009  2010 2011 2012Décennies :1970 1980 1990  2000  2010 2020 2030Siècles :XIXe XXe  XXIe  XXIIe XXIIIeMillénaires :Ier IIe  IIIe  Chronologies géographiques Afrique Afrique du Sud, Algérie, Angola, Bénin, Botswana, Burkina Faso, Burundi, Cameroun, Cap-Vert, République centrafricaine, Comores, République du Congo, République démocratique du Congo, Côte d'Ivoire, Djibouti, Égypte, �...

 

清水市

静岡県駿東郡にある「清水町 (静岡県)」、前身である静岡県安倍郡にあった「清水町 (静岡県安倍郡)」、北海道上川郡にある「清水町 (北海道)」、高知県にある「土佐清水市」、あるいは現存する静岡市の行政区である「清水区」とは異なります。 しみずし清水市 日本平から望む富士山と清水港 清水市旗 清水市章 清水市旗 清水市章1928年（昭和3年）8月9日制定[2 ...