{"id":563,"date":"2023-11-28T14:50:23","date_gmt":"2023-11-28T14:50:23","guid":{"rendered":"https:\/\/blogs.ua.es\/westerntethys\/?p=563"},"modified":"2023-11-28T14:50:23","modified_gmt":"2023-11-28T14:50:23","slug":"malaguide-carboniferous-culm-cycle-in-the-betic-cordillera","status":"publish","type":"post","link":"https:\/\/blogs.ua.es\/westerntethys\/2023\/11\/28\/malaguide-carboniferous-culm-cycle-in-the-betic-cordillera\/","title":{"rendered":"Malaguide Carboniferous culm cycle in the Betic Cordillera"},"content":{"rendered":"

Carboniferous sandstone within the Paleo-Mesomediterranean Domain (Malaguide Subdomain), in southern\u00a0Spain, represents a key detrital mode within the sedimentary budget of convergent plate boundaries during the\u00a0Variscan s.s. to Paleotethysian orogenic time span (\u2248420\u2013300 Ma). This Carboniferous detritus corresponds with\u00a0Culm lithostratigraphic depositional unit, and it covers an important gap of information (paleogeographic, paleotectonic,\u00a0source areas) to the area located between the Iberian-French massifs and the African Paleo-Atlas, in the\u00a0western Paleotethys. Sandstone composition is quartzolithic and records an important high-to-medium-low\u00a0grade metamorphic content. The source area was a lithic and transitional recycled orogen with a signature of volcanic\u00a0and ophiolitic detritus (\u2248330 Ma and\/or older). These supplies seem to be derived from a mid-crustal deformed\u00a0and thrusted pre-late Ordovician to Early Carboniferous terrane, involved in the plate convergence (the\u00a0southern Europe Iberian-French massifs overriding the north African area) southeatwards of the Variscan s.s.\u00a0orogenic system, rapidly exhumed and uplifted at mid-Late Carboniferoous time. Consequently, in the overriding\u00a0hinterland (southern Europe: Iberian-French massifs), metamorphic basement should be already structured during\u00a0middle Carboniferous when thrusting took place and deposition of Culm facies started in the Malaguide Complex,\u00a0suggesting Proterozoic-Early Carboniferous (most probably, \u2248420 to 330 Ma) metamorphic highlands. The\u00a0presence of serpentinite-like detritus (\u2248330 Ma and\/or older) seems to indicate a metamorphosed oceanic crust\u00a0being dismantled at that time. Thus, sources from ophiolitic suture (most probably developed at \u2248420\u2013330 Ma)\u00a0zones are tentatively proposed in other northern Gondwana of southwestern Europe. The occurrence of a synsedimentary\u00a0volcanic activity (andesitic) should be related to a lost magmatic arc (most probably developed at\u00a0\u2248360\u2013330 Ma), reinforcing the idea of a nearby subduction area. Therefore, the thick terrigenous Culm deposits\u00a0(\u2248330\u2013300 Ma) from the Malaguide Subdomain could be deposited in a complex foreland system basin connected\u00a0northward with carbonate platforms and with a crystalline highland uplifted domain from the southern\u00a0Europe Iberian-French massifs and southward with the African Paleo-Atlas Domain. The studied mid- to late Carboniferous\u00a0sandstone petrofacies deeply contributes to paleogeographic reconstructions since block fragmentation\u00a0and spreading, during the Paleotethysian and Alpine orogenies, rearranged the Paleozoic paleogeography\u00a0now part of the Cenozoic Perimediterranean Chains. After the correlation with the Carboniferous from other\u00a0western Paleotethys domains, new paleogeographic-paleotectonic constraints.<\/p>\n

\"Paleogeographic-paleotectonic

Paleogeographic-paleotectonic maps: A) global pre-Pangea situation (350 Ma, Early Carboniferous); B) global Pangea situation (310 Ma, Late Carboniferous); C) detail of the Pangea situation (310 Ma, Late Carboniferous) in the northern Gondwana area; D) nowadays situation; E) geological cross-section at 310 Ma, Late Carboniferous (located in Fig. 14C). A) and B) modified from P\u00e9rez-Esta\u00fan et al. (2004) and Vera (2004), C) modified from Arenas et al. (2016), D) modified from Vera (2004). In C appears the location of the studied sectors (1\u20134) in the Malaguide Subdomain from the Paleo-Mesomediterranean Domain, and the corelated sectors: Iberian (sectors 5\u20137) and Central French (sectors 8 and 9) Massifs, E Paleo-Mesomediterranean Domain (sector 10), Bohemian Massif (sector 11), Paleo- Atlas-Saharian Domain (sectors 12\u201314), and Arabian (sector 15).<\/p><\/div>\n

cite as:\u00a0Criniti, S.; Mart\u00edn-Mart\u00edn, M.; Mart\u00edn-Algarra, A. New Constraints for the Western Paleotethys Paleogeography-Paleotectonics Derived from Detrital Signatures: Malaguide Carboniferous Culm Cycle (Betic Cordillera, S Spain). Sediment. Geol.<\/i> 2023<\/b>, 458<\/i>, 106534<\/a>, doi: 10.1016\/j.sedgeo.2023.106534.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Carboniferous sandstone within the Paleo-Mesomediterranean Domain (Malaguide Subdomain), in southern\u00a0Spain, represents a key detrital mode within the sedimentary budget of convergent plate boundaries during the\u00a0Variscan s.s. to Paleotethysian orogenic time span (\u2248420\u2013300 Ma). This Carboniferous detritus corresponds with\u00a0Culm lithostratigraphic depositional unit, and it covers an important gap of information (paleogeographic, paleotectonic,\u00a0source areas) to the area […]<\/p>\n","protected":false},"author":4347,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2325126,2325108,2325160],"tags":[],"class_list":["post-563","post","type-post","status-publish","format-standard","hentry","category-paleogeography","category-paleozoic","category-pid2020-114381gb-i00"],"_links":{"self":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/563","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=563"}],"version-history":[{"count":3,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/563\/revisions"}],"predecessor-version":[{"id":567,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/posts\/563\/revisions\/567"}],"wp:attachment":[{"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/media?parent=563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/categories?post=563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.ua.es\/westerntethys\/wp-json\/wp\/v2\/tags?post=563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}