{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T17:38:29Z","timestamp":1777570709295,"version":"3.51.4"},"reference-count":17,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2018,1,19]],"date-time":"2018-01-19T00:00:00Z","timestamp":1516320000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Energy Exploration &amp; Exploitation"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:p>\n                    The Mozambique Basin, which occurs onshore and offshore in the central and southern parts of Mozambique, contains a thick sequence of volcanic and sedimentary rocks that range in age from the Jurassic to Cenozoic. This basin, along with the Rovuma basin to the north, has been the main target for hydrocarbon exploration; however, published data on hydrocarbon occurrences do not exist. In this context, the present study aims to contribute to the understanding of the nature of the organic matter of a sedimentary sequence intercepted by the Nemo-1X exploration well located in the offshore area of the Mozambique Basin. The well reached a depth of 4127 m, and 33 samples were collected from a depth of 2219\u20133676 m ranging in age from early to Late Cretaceous. In this study, petrographic and geochemical analytical methods were applied to assess the level of vitrinite reflectance and the organic matter type as well as the total organic carbon, total sulfur, and CaCO\n                    <jats:sub>3<\/jats:sub>\n                    contents. The results show that the total organic carbon content ranges from 0.41 to 1.34 wt%, with the highest values determined in the samples from the Lower Domo Shale and Sena Formations, which may be related to the presence of the solid bitumens that occur in the carbonate fraction of those samples. The vitrinite random reflectances range from 0.65 to 0.86%Rrandom, suggesting that the organic matter in all of the samples is in the peak phase of the \u201coil generation window\u201d (0.65\u20130.9%Rrandom). The organic matter is mainly composed of vitrinite and inertinite macerals, with a minor contribution of sporinite from the liptinite group, which is typical of kerogen type III. Although all of the samples have vitrinite reflectances corresponding to the oil window, the formation of liquid hydrocarbons is rather limited because the organic matter is dominated by gas-prone kerogen type III.\n                  <\/jats:p>","DOI":"10.1177\/0144598717753920","type":"journal-article","created":{"date-parts":[[2018,1,19]],"date-time":"2018-01-19T05:38:02Z","timestamp":1516340282000},"page":"1157-1171","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Characterization of organic matter from a stratigraphic sequence intercepted by the Nemo-1X well, Mozambique: Potential for hydrocarbon generation"],"prefix":"10.1177","volume":"36","author":[{"given":"Agostinho","family":"Mussa","sequence":"first","affiliation":[{"name":"Curso de P\u00f3s-Gradua\u00e7\u00e3o em Geoci\u00eancias, Instituto de Geoci\u00eancias, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil"}]},{"given":"Deolinda","family":"Flores","sequence":"additional","affiliation":[{"name":"Departamento de Geoci\u00eancias, Ambiente e Ordenamento do Territ\u00f3rio, Faculdade de Ci\u00eancias da Universidade do Porto, Instituto de Ci\u00eancias da Terra, Polo da Universidade do Porto, Porto, Portugal"}]},{"given":"Joana","family":"Ribeiro","sequence":"additional","affiliation":[{"name":"Departamento de Geoci\u00eancias, Ambiente e Ordenamento do Territ\u00f3rio, Faculdade de Ci\u00eancias da Universidade do Porto, Instituto de Ci\u00eancias da Terra, Polo da Universidade do Porto, Porto, Portugal"}]},{"given":"Ana MP","family":"Mizusaki","sequence":"additional","affiliation":[{"name":"Curso de P\u00f3s-Gradua\u00e7\u00e3o em Geoci\u00eancias, Instituto de Geoci\u00eancias, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil"}]},{"given":"M\u00f3nica","family":"Chamussa","sequence":"additional","affiliation":[{"name":"National Hydrocarbons Company (ENH), Maputo, Mozambique"}]},{"given":"Jo\u00e3o GM","family":"Filho","sequence":"additional","affiliation":[{"name":"Departamento de Geologia, Universidade Federal do Rio de Janeiro, Laborat\u00f3rio de Palinof\u00e1cies & F\u00e1cies Org\u00e2nica (LAFO), Instituto de Geoci\u00eancias, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil"}]},{"given":"Wolfgang D","family":"Kalkreuth","sequence":"additional","affiliation":[{"name":"Curso de P\u00f3s-Gradua\u00e7\u00e3o em Geoci\u00eancias, Instituto de Geoci\u00eancias, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil"}]}],"member":"179","published-online":{"date-parts":[[2018,1,19]]},"reference":[{"issue":"1","key":"bibr1-0144598717753920","first-page":"81","volume":"30","author":"Alan EMN","year":"1991","journal-title":"Earth-Science Reviews"},{"key":"bibr2-0144598717753920","unstructured":"ASTM D2797\/D2797M11 (2011) Standard Practice for Preparing Coal Samples for Microscopical Analysis by Reflected Light, Annual Book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke, Sec. 5, v. 5.06. \nWest Conshohocken, PA: \nASTM International, pp.454\u2013458."},{"key":"bibr3-0144598717753920","unstructured":"ASTM D7708-14 (2014) Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks: Annual Book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke, Sec. 5, v. 5.06. \nWest Conshohocken, PA: \nASTM International, pp.823\u2013830."},{"key":"bibr4-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1016\/0304-4203(95)00010-O"},{"issue":"4","key":"bibr5-0144598717753920","first-page":"1276","volume":"14","author":"Borrego J","year":"1998","journal-title":"Journal of Coastal Research"},{"key":"bibr6-0144598717753920","unstructured":"ECL (2000)\n                      The Petroleum Geology and Hydrocarbon Prospectivity of Mozambique, Volume 1\n                      . ENH, Mozambique, p.144."},{"key":"bibr7-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1016\/j.coal.2016.06.010"},{"key":"bibr8-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1016\/0264-8172(91)90003-J"},{"key":"bibr9-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1016\/0166-5162(89)90113-4"},{"key":"bibr10-0144598717753920","unstructured":"Lineback JA, Keal J, Burroughs K (1986) Source rock potential of East Africa progress report and preliminary geochemical data and interpretation for Mozambique and additional wells in Somalia, Ethiopia and Madagascar.\n                      Project No. RRUS\/856\/M\/1004\/B\n                      .  Houston, TX:  Robertson Research (U.S.) Inc., p.400."},{"key":"bibr11-0144598717753920","unstructured":"Michael EB (2016) Assessment of Undiscovered Oil and Gas Resources of the Mozambique Coastal Province, East Africa.  Reston, VA:  U.S. Geological Survey, Digital Data Series 69-GG, p.18."},{"key":"bibr12-0144598717753920","doi-asserted-by":"crossref","unstructured":"Peters KE, Cassa MR (1994) Applied Source Rock Geochemistry.  Dallas, TX:  Mobil Exploration and Producing Technical Center, pp.93\u2013115.","DOI":"10.1306\/M60585C5"},{"key":"bibr13-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1016\/0037-0738(95)00125-R"},{"key":"bibr14-0144598717753920","unstructured":"Salman G, Sheremetiev Y, Koblents A, et al. (1990)\n                      The northern part of Mozambique Basin, a report on the geology and the oil and gas potential of Zambezi Licence Block\n                      , Mozambique, ENH, p.127."},{"issue":"3","key":"bibr15-0144598717753920","first-page":"14","volume":"19","author":"Stasiuk L","year":"2002","journal-title":"The Society for Organic Petrology Newsletter"},{"key":"bibr16-0144598717753920","doi-asserted-by":"crossref","unstructured":"Su\u00e1rez-Ruiz I and Mendon\u00e7a Filho J (2017)\n                      The Role of Organic Petrology in the Exploration of Conventional and Unconventional Hydrocarbon Systems\n                      . Book Series: Geology: Current and Future Developments. Volume 1. Bentham Books, p.157.","DOI":"10.2174\/97816810846331170101"},{"key":"bibr17-0144598717753920","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-87813-8"}],"container-title":["Energy Exploration &amp; Exploitation"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0144598717753920","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0144598717753920","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0144598717753920","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T19:11:00Z","timestamp":1777403460000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/0144598717753920"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,1,19]]},"references-count":17,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2018,9]]}},"alternative-id":["10.1177\/0144598717753920"],"URL":"https:\/\/doi.org\/10.1177\/0144598717753920","relation":{},"ISSN":["0144-5987","2048-4054"],"issn-type":[{"value":"0144-5987","type":"print"},{"value":"2048-4054","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,1,19]]}}}