FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W758248839> ?p ?o ?g. }

• W758248839 endingPage "362" @default.
• W758248839 startingPage "350" @default.
• W758248839 abstract "Supergene manganese deposits commonly contain K-rich Mn oxides with tunnel structure, such as cryptomelane, which are suitable for radiometric dating using the 39Ar–40Ar method. In Africa, Mn deposits have been dated by this method for localities in western and southern parts of the continent, whereas only some preliminary data are available for Central Africa. Here we present new 39Ar–40Ar ages for Mn oxide samples of the Kisenge deposit, in southwestern Katanga, Democratic Republic of the Congo. The samples represent supergene Mn oxide deposits that formed at the expense of primary Paleoproterozoic rhodochrosite-dominated carbonate ores. Main phases of Mn oxide formation are dated at c. 10.5 Ma, 3.6 Ma and 2.6 Ma for a core that crosses a mineralized interval. The latter shows a decrease in age with increasing depth, recording downward penetration of a weathering front. Surface samples of the Kisenge deposits also record a ≥ c.19.2 Ma phase, as well as c. 15.7 Ma, 14.2 Ma and 13.6 Ma phases. The obtained ages correspond to distinct periods of paleosurface development and stability during the Mio-Pliocene in Katanga. Because Katanga is a key area bordered to the North by the Congo Basin and to the East by the East African Rift System, these ages also provide constraints for the geodynamic evolution of the entire region. For the Mio-Pliocene, the Kisenge deposits record ages that are not systematically found elsewhere in Africa, although the 10.5–11 Ma event corresponds to a roughly simultaneous event in the Kalahari Manganese Field, South Africa. The rest of the Katanga paleosurface record differs somewhat from records for other parts of Africa, for which older, Eocene ages have been obtained. This difference is most probably related to the specific regional geodynamic context: uplift of the East African Plateau, with associated erosion, and the opening of the East African Rift System at c. 25 Ma are events whose effects, in the study area, interfere with those of processes responsible for the development of continent-wide paleosurfaces." @default.
• W758248839 created "2016-06-24" @default.
• W758248839 creator A5028615626 @default.
• W758248839 creator A5041305433 @default.
• W758248839 creator A5070715249 @default.
• W758248839 creator A5081795122 @default.
• W758248839 date "2015-12-01" @default.
• W758248839 modified "2023-10-10" @default.
• W758248839 title "The age of supergene manganese deposits in Katanga and its implications for the Neogene evolution of the African Great Lakes Region" @default.
• W758248839 cites W1723029166 @default.
• W758248839 cites W1967145871 @default.
• W758248839 cites W1968317054 @default.
• W758248839 cites W1977787946 @default.
• W758248839 cites W1980349572 @default.
• W758248839 cites W1983522510 @default.
• W758248839 cites W1987192769 @default.
• W758248839 cites W1988886532 @default.
• W758248839 cites W1991999973 @default.
• W758248839 cites W1992613854 @default.
• W758248839 cites W1993842374 @default.
• W758248839 cites W1998136203 @default.
• W758248839 cites W1998965276 @default.
• W758248839 cites W2003905575 @default.
• W758248839 cites W2019445795 @default.
• W758248839 cites W2020788899 @default.
• W758248839 cites W2021461606 @default.
• W758248839 cites W2024316866 @default.
• W758248839 cites W2027186853 @default.
• W758248839 cites W2029533565 @default.
• W758248839 cites W2029716056 @default.
• W758248839 cites W2029964093 @default.
• W758248839 cites W2032093895 @default.
• W758248839 cites W2032191042 @default.
• W758248839 cites W2037204808 @default.
• W758248839 cites W2039030972 @default.
• W758248839 cites W2046428713 @default.
• W758248839 cites W2047134766 @default.
• W758248839 cites W2052689249 @default.
• W758248839 cites W2057992805 @default.
• W758248839 cites W2058032279 @default.
• W758248839 cites W2063564907 @default.
• W758248839 cites W2067064205 @default.
• W758248839 cites W2072404272 @default.
• W758248839 cites W2073165379 @default.
• W758248839 cites W2075192171 @default.
• W758248839 cites W2075510349 @default.
• W758248839 cites W2084188903 @default.
• W758248839 cites W2085175589 @default.
• W758248839 cites W2085636637 @default.
• W758248839 cites W2091800551 @default.
• W758248839 cites W2093041656 @default.
• W758248839 cites W2095138138 @default.
• W758248839 cites W2102343682 @default.
• W758248839 cites W2143413964 @default.
• W758248839 cites W2152653594 @default.
• W758248839 cites W2153662638 @default.
• W758248839 cites W2164103141 @default.
• W758248839 cites W2323994467 @default.
• W758248839 cites W2333702845 @default.
• W758248839 doi "https://doi.org/10.1016/j.oregeorev.2015.06.015" @default.
• W758248839 hasPublicationYear "2015" @default.
• W758248839 type Work @default.
• W758248839 sameAs 758248839 @default.
• W758248839 citedByCount "34" @default.
• W758248839 countsByYear W7582488392015 @default.
• W758248839 countsByYear W7582488392016 @default.
• W758248839 countsByYear W7582488392017 @default.
• W758248839 countsByYear W7582488392018 @default.
• W758248839 countsByYear W7582488392019 @default.
• W758248839 countsByYear W7582488392020 @default.
• W758248839 countsByYear W7582488392021 @default.
• W758248839 countsByYear W7582488392022 @default.
• W758248839 countsByYear W7582488392023 @default.
• W758248839 crossrefType "journal-article" @default.
• W758248839 hasAuthorship W758248839A5028615626 @default.
• W758248839 hasAuthorship W758248839A5041305433 @default.
• W758248839 hasAuthorship W758248839A5070715249 @default.
• W758248839 hasAuthorship W758248839A5081795122 @default.
• W758248839 hasBestOaLocation W7582488392 @default.
• W758248839 hasConcept C102198088 @default.
• W758248839 hasConcept C109007969 @default.
• W758248839 hasConcept C127313418 @default.
• W758248839 hasConcept C147717901 @default.
• W758248839 hasConcept C151730666 @default.
• W758248839 hasConcept C170187044 @default.
• W758248839 hasConcept C17409809 @default.
• W758248839 hasConcept C178790620 @default.
• W758248839 hasConcept C185592680 @default.
• W758248839 hasConcept C191897082 @default.
• W758248839 hasConcept C192562407 @default.
• W758248839 hasConcept C27492601 @default.
• W758248839 hasConcept C2778410265 @default.
• W758248839 hasConcept C2778849375 @default.
• W758248839 hasConcept C2780659211 @default.
• W758248839 hasConcept C2993225395 @default.
• W758248839 hasConcept C40724407 @default.
• W758248839 hasConcept C528890316 @default.
• W758248839 hasConcept C77928131 @default.

• next