{"refrec":{"BRefID":285493,"RR":"<b>Delpomdor, F.; Eyles, N.; Tack, L.; Preat, A.</b> (2016). Pre- and post-Marinoan carbonate facies of the Democratic Republic of the Congo: glacially- or tectonically-influenced deep-water sediments? <i>Palaeogeogr. Palaeoclimatol. Palaeoecol. 457</i>: 144-157. <a href=\"https://dx.doi.org/10.1016/j.palaeo.2016.06.014\" target=\"_blank\">https://dx.doi.org/10.1016/j.palaeo.2016.06.014</a>","BEntID":277518,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":" <i>Palaeogeogr. Palaeoclimatol. Palaeoecol. 457</i>: 144-157. <a href=\"https://dx.doi.org/10.1016/j.palaeo.2016.06.014\" target=\"_blank\">https://dx.doi.org/10.1016/j.palaeo.2016.06.014</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Delpomdor, F.; Eyles, N.; Tack, L.; Preat, A.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Delpomdor, F. <i>et al.</i>","Englishabstract":"The upper carbonate-rich parts of the West Congo Supergroup (similar to 1000-560 Ma) from the Democratic Republic of the Congo have hitherto been considered as a record of abrupt eustatic and climatic events accompanying glaciation and deglaciation of a Snowball Earth-type Marinoan ice age that was of global extent. These strata have however never been investigated in detail. Results of new sedimentological work at key outcrops over a 1300 km outcrop belt show that pre- and post-Marinoan carbonates are respectively, storm-influenced sediments deposited principally in a mid/outer-ramp setting, and deep-water slope carbonates (calicturbidites) representing a lobe-fringe or levee-overbank setting. The Upper Diamictite Formation held previously by some to be a subglacial tillite, comprises gravity flows (debrites) deposited in deep water below wave base along the unstable margins of a carbonate ramp. A direct glacial influence on sedimentation for diamictites or any accompanying fades cannot be readily identified. Sedimentary facies reported here primarily record the presence of deep-water submarine to alluvial fan systems related to extensional tectonic processes of the central-southern Macailbas Basin (now located in Brazil) between 700 Ma and 660 Ma followed by the 630-Ma onset of the pre-collisional magmatic arc in the Aracuai-West Congo Orogen. No extreme short-lived climatic or eustatic events of a Snowball Earth-type ice age are recorded in the studied succession, which primarily reflects long-term overriding regional tectonic controls resulting in diachronous sedimentation along the western margin of the Congo Craton.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Pre- and post-Marinoan carbonate facies of the Democratic Republic of the Congo: glacially- or tectonically-influenced deep-water sediments?","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-21 01:32:34.205325","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Neoproterozoic; Snowball Earth; Debrites; Deep-water carbonates;Diamictite; Tectonics","OtherDescriptors":null,"Notes":null,"AnaPub":2016,"MonPub":null,"DateUpdate":"2017-05-30","DateCreate":"2017-05-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000380598800011","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.palaeo.2016.06.014"},"refs":null,"anarec":{"AnaID":285493,"PubliDate":2016,"Pagination":"144-157","XtraPublOfAnaID":null,"ISBN":null,"Volume":"457","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43483,"SerRR":"Palaeogeography, Palaeoclimatology, Palaeoecology. 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