{"title":"美国加利福尼亚州旧金山湾区西北部弗朗西斯坎复合中心地层混杂带的解构及弗朗西斯坎混杂带和建筑的重新评估","authors":"L. A. Raymond","doi":"10.1144/jgs2024-102","DOIUrl":null,"url":null,"abstract":"Various mélange types occur within the Franciscan accretionary Complex of western California. The largest mélange body, called the Central Belt Mélange (or similar names) served earlier as the type example for the orogen-long, subduction channel model. Yet, in the northwestern San Francisco Bay Area, the name does not accurately reflect the geology. The mélange designation was commonly applied where resistant exotic and native blocks of rock are scattered across a relatively smooth terrain. Detailed mapping shows that many blocks experienced post-accretion transport. Aerially large rock masses previously designated as Central Belt Mélange consist of multiple units and less than 30 percent of the tectonostratigraphy is mélange. Weakly metamorphosed sandstone-mudrock broken to dismembered formational units and similarly deformed sandstone-mudrock submarine fan facies dominate the tectonostratigraphy. Subordinate mélanges of the northwestern San Francisco Bay Area are of tectonic or sedimentary origin. The sedimentary bodies represent submarine mass flow deposits. Tectonic mélanges mark Mesozoic subduction zone faults or Cenozoic strike-slip faults. Discriminating among mélange types and their origins, and reconstructing tectonostratigraphic columns for major fault blocks, clarifies the primary accretionary complex architecture and reveals significant along strike variations in the Franciscan subduction accretionary Complex.","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":"11 5","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Deconstruction of the Franciscan Complex central terrane mélange and re-evaluation of Franciscan mélanges and architecture of the northwestern San Francisco Bay area, California, USA\",\"authors\":\"L. A. Raymond\",\"doi\":\"10.1144/jgs2024-102\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Various mélange types occur within the Franciscan accretionary Complex of western California. The largest mélange body, called the Central Belt Mélange (or similar names) served earlier as the type example for the orogen-long, subduction channel model. Yet, in the northwestern San Francisco Bay Area, the name does not accurately reflect the geology. The mélange designation was commonly applied where resistant exotic and native blocks of rock are scattered across a relatively smooth terrain. Detailed mapping shows that many blocks experienced post-accretion transport. Aerially large rock masses previously designated as Central Belt Mélange consist of multiple units and less than 30 percent of the tectonostratigraphy is mélange. Weakly metamorphosed sandstone-mudrock broken to dismembered formational units and similarly deformed sandstone-mudrock submarine fan facies dominate the tectonostratigraphy. Subordinate mélanges of the northwestern San Francisco Bay Area are of tectonic or sedimentary origin. The sedimentary bodies represent submarine mass flow deposits. Tectonic mélanges mark Mesozoic subduction zone faults or Cenozoic strike-slip faults. Discriminating among mélange types and their origins, and reconstructing tectonostratigraphic columns for major fault blocks, clarifies the primary accretionary complex architecture and reveals significant along strike variations in the Franciscan subduction accretionary Complex.\",\"PeriodicalId\":2,\"journal\":{\"name\":\"ACS Applied Bio Materials\",\"volume\":\"11 5\",\"pages\":\"\"},\"PeriodicalIF\":4.6000,\"publicationDate\":\"2024-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ACS Applied Bio Materials\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1144/jgs2024-102\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, BIOMATERIALS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1144/jgs2024-102","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
Deconstruction of the Franciscan Complex central terrane mélange and re-evaluation of Franciscan mélanges and architecture of the northwestern San Francisco Bay area, California, USA
Various mélange types occur within the Franciscan accretionary Complex of western California. The largest mélange body, called the Central Belt Mélange (or similar names) served earlier as the type example for the orogen-long, subduction channel model. Yet, in the northwestern San Francisco Bay Area, the name does not accurately reflect the geology. The mélange designation was commonly applied where resistant exotic and native blocks of rock are scattered across a relatively smooth terrain. Detailed mapping shows that many blocks experienced post-accretion transport. Aerially large rock masses previously designated as Central Belt Mélange consist of multiple units and less than 30 percent of the tectonostratigraphy is mélange. Weakly metamorphosed sandstone-mudrock broken to dismembered formational units and similarly deformed sandstone-mudrock submarine fan facies dominate the tectonostratigraphy. Subordinate mélanges of the northwestern San Francisco Bay Area are of tectonic or sedimentary origin. The sedimentary bodies represent submarine mass flow deposits. Tectonic mélanges mark Mesozoic subduction zone faults or Cenozoic strike-slip faults. Discriminating among mélange types and their origins, and reconstructing tectonostratigraphic columns for major fault blocks, clarifies the primary accretionary complex architecture and reveals significant along strike variations in the Franciscan subduction accretionary Complex.
期刊介绍:
ACS Applied Bio Materials is an interdisciplinary journal publishing original research covering all aspects of biomaterials and biointerfaces including and beyond the traditional biosensing, biomedical and therapeutic applications.
The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important bio applications. The journal is specifically interested in work that addresses the relationship between structure and function and assesses the stability and degradation of materials under relevant environmental and biological conditions.