{"id":501,"date":"2023-04-21T07:26:02","date_gmt":"2023-04-21T07:26:02","guid":{"rendered":"https:\/\/blogs.ua.es\/westerntethys\/?p=501"},"modified":"2023-04-21T07:26:02","modified_gmt":"2023-04-21T07:26:02","slug":"oligocene-lower-miocene-sandstones-of-western-tethys","status":"publish","type":"post","link":"https:\/\/blogs.ua.es\/westerntethys\/2023\/04\/21\/oligocene-lower-miocene-sandstones-of-western-tethys\/","title":{"rendered":"Oligocene-Lower Miocene sandstones of Western Tethys"},"content":{"rendered":"

\u00a0<\/span>The changing nature of detrital signatures in clastic wedges of the Circum-Mediterranean orogenic systems reflect the provenance relations from different source rocks of evolving geo-puzzle terranes, including ophiolite bearing, uplifted continental crust (both shallow to deep crust terranes), volcanic and sedimentary source rocks. We selected here sandstone suites directly occurring over the Mesomediterranean Micropaleoplate during the final stages of closure of the western-southern Tethyan realm. They are unconformably over the internal domains of the Circum-Mediterranean thrust belts, and include Oligocene-to-lower Miocene siliciclastic formations of the Betic Cordillera (As, Bosque, R\u00edo Pliego, El Ni\u00f1o, Ciudad Granada, Fuente-Espejos, Alozaina and Vi\u00f1uela fms), Rif Chain (Fnideq and Sidi Abdeslam fms), and Calabrian terranes (Paludi, Pignolo and Stilo Capo d\u2019Orlando fms). All these sandstone suites range from quartzolitic to quartzofeldspathic detrital modes reflecting close relations with their Paleozoic metasedimentary and plutonic source rocks and their related Mesozoic sedimentary covers.<\/p>\n

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QmFL diagrams with synthesis of detrital modes of the studied sectors: A, Espu\u00f1a sector; B, Almer\u00eda sector; C, M\u00e1laga sector; D, Ghomaride of the Tetuan sector; E, Sila sector; and F, Serre-Aspromonte-Peloritani sector. Qm (monocrystalline quartz), F (feldspars), Lt (total lithic fragments L + Qp), L (aphanitic lithic fragments), Qp (polycrystalline quartz).<\/p><\/div>\n

Marked differences have been recognized from western (Betic-Rif) to eastern (Calabria) portions in terms of detritic suites. Detrital suites of the Betic-Rif portions reflect a transition between a craton, transitional and recycled orogenic provenance type. Contrarily, detrital suites of the Calabria portions reflect their transition from transitional continental to basement uplift orogenic provenance reflecting deposition in wedge-top basins during final subduction of the\u00a0Magrebian-Lucanian-Ionian\u00a0Basin\u00a0<\/span>below the Mesomediterranean and the opening of the Mediterranean basin as a backarc.<\/p>\n

Cites as: Critelli, S., Mart\u00edn-Mart\u00edn, M., 2022. Provenance, paleogeographic and paleotectonic interpretations of Oligocene-Lower Miocene sandstones of the western-central Mediterranean region: A review. J. Asian Earth Sci. X 8, 100124. doi: 10.1016\/j.jaesx.2022.100124<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u00a0The changing nature of detrital signatures in clastic wedges of the Circum-Mediterranean orogenic systems reflect the provenance relations from different source rocks of evolving geo-puzzle terranes, including ophiolite bearing, uplifted continental crust (both shallow to deep crust terranes), volcanic and … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":4347,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2325126,2325160,2325093],"tags":[2325192,2325152,2325194,2325193,2325191],"class_list":["post-501","post","type-post","status-publish","format-standard","hentry","category-paleogeography","category-pid2020-114381gb-i00","category-tethys","tag-calabria","tag-internal-betic-zone","tag-oligo-miocene","tag-rif","tag-sandstone"],"_links":{"self":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/users\/4347"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/comments?post=501"}],"version-history":[{"count":5,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/501\/revisions"}],"predecessor-version":[{"id":515,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/501\/revisions\/515"}],"wp:attachment":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/media?parent=501"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/categories?post=501"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/tags?post=501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}