FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3103058964> ?p ?o ?g. }

• W3103058964 endingPage "106007" @default.
• W3103058964 startingPage "106007" @default.
• W3103058964 abstract "Abstract The southern part of the Malawi Basement Complex is regarded as being part of the Mozambique Belt, which was formed by a series of collisions between Archean cratons and/or Proterozoic magmatic arcs during Neoproterozoic to Cambrian time. The region is particularly important because of its location near the junction between the East-African (ca. 600–550 Ma) and Kuunga (ca. 560–530 Ma) orogens, which means that complex magmatic or metamorphic episodes may have been recorded in high-grade metamorphic rocks in the region. Here we report on new petrological, geochemical, and zircon U–Pb age data on felsic to mafic orthogneisses as well as on a syn-tectonic syenite from the Lilongwe–Zomba–Blantyre area in southern Malawi, with a view to evaluating the timing and pressure–temperature (P–T) conditions of the collision events as well as the protolith formation. The geochemical data on the felsic orthogneisses suggested magmatic-arc signatures, whereas the mafic orthogneisses had both magmatic-arc and non-arc signatures. Metamorphic P–T estimates for the orthogneisses based on conventional geothermometry and phase-equilibria modeling indicated high-pressure granulite-facies conditions of 9.1–11.6 kbar and 840 °C–930 °C. Zircons obtained from charnockite, biotite gneiss, and garnet-bearing mafic granulite yielded magmatic ages of 1011–808 Ma, 1013 Ma, and 1076 Ma, respectively, suggesting the presence of Stenian–Tonian crustal growth related to arc magmatism. Ediacaran (573 Ma) intrusion of granitic rock was also inferred from magmatic zircons found within a granitoid gneiss. The timing of the high-grade metamorphism was constrained by the ages of the zircon rims and found to be 569–557 Ma, thus coinciding with the intrusion of syn-tectonic syenite at 562 Ma. The results of this study suggest that the southern part of Malawi is composed of remnants of the Stenian–Tonian magmatic arc, which were metamorphosed together with surrounding metasediments around 560 Ma. The Ediacaran high-grade metamorphism is consistent with the age of the Zambezi Belt located immediately southwest of the Malawi Basement Complex. Both the Lilongwe–Zomba–Blantyre area and the Zambezi Belt may correspond to a single suture zone formed by the latest Neoproterozoic collision between the Kalahari and Congo Cratons." @default.
• W3103058964 created "2020-11-23" @default.
• W3103058964 creator A5003384004 @default.
• W3103058964 creator A5048238669 @default.
• W3103058964 creator A5054440468 @default.
• W3103058964 creator A5060830929 @default.
• W3103058964 creator A5069350652 @default.
• W3103058964 creator A5074471189 @default.
• W3103058964 creator A5074613933 @default.
• W3103058964 creator A5087761272 @default.
• W3103058964 date "2021-01-01" @default.
• W3103058964 modified "2023-10-01" @default.
• W3103058964 title "Neoproterozoic crustal growth in southern Malawi: New insights from petrology, geochemistry, and U–Pb zircon geochronology, and implications for the Kalahari Craton–Congo Craton amalgamation" @default.
• W3103058964 cites W1521262137 @default.
• W3103058964 cites W1830358639 @default.
• W3103058964 cites W1965835831 @default.
• W3103058964 cites W1969859799 @default.
• W3103058964 cites W1972893584 @default.
• W3103058964 cites W1972909865 @default.
• W3103058964 cites W1977263417 @default.
• W3103058964 cites W1977753588 @default.
• W3103058964 cites W1978488084 @default.
• W3103058964 cites W1982712732 @default.
• W3103058964 cites W1990952807 @default.
• W3103058964 cites W1997842666 @default.
• W3103058964 cites W1998977948 @default.
• W3103058964 cites W1999164599 @default.
• W3103058964 cites W2000269533 @default.
• W3103058964 cites W2000802134 @default.
• W3103058964 cites W2001817263 @default.
• W3103058964 cites W2003912021 @default.
• W3103058964 cites W2007061988 @default.
• W3103058964 cites W2007105153 @default.
• W3103058964 cites W2009251618 @default.
• W3103058964 cites W2011335147 @default.
• W3103058964 cites W2016681679 @default.
• W3103058964 cites W2019890340 @default.
• W3103058964 cites W2020139762 @default.
• W3103058964 cites W2021788085 @default.
• W3103058964 cites W2021987309 @default.
• W3103058964 cites W2023999965 @default.
• W3103058964 cites W2024978610 @default.
• W3103058964 cites W2026834852 @default.
• W3103058964 cites W2028198159 @default.
• W3103058964 cites W2031411701 @default.
• W3103058964 cites W2032975395 @default.
• W3103058964 cites W2034472228 @default.
• W3103058964 cites W2035045796 @default.
• W3103058964 cites W2037488054 @default.
• W3103058964 cites W2037545965 @default.
• W3103058964 cites W2040549377 @default.
• W3103058964 cites W2045914082 @default.
• W3103058964 cites W2046239832 @default.
• W3103058964 cites W2046362351 @default.
• W3103058964 cites W2052785062 @default.
• W3103058964 cites W2058741861 @default.
• W3103058964 cites W2059013108 @default.
• W3103058964 cites W2059259164 @default.
• W3103058964 cites W2060313404 @default.
• W3103058964 cites W2066005946 @default.
• W3103058964 cites W2067434589 @default.
• W3103058964 cites W2069402922 @default.
• W3103058964 cites W2073369132 @default.
• W3103058964 cites W2087680768 @default.
• W3103058964 cites W2090542330 @default.
• W3103058964 cites W2093369526 @default.
• W3103058964 cites W2093671367 @default.
• W3103058964 cites W2106146079 @default.
• W3103058964 cites W2107282719 @default.
• W3103058964 cites W2108971421 @default.
• W3103058964 cites W2116346512 @default.
• W3103058964 cites W2123698291 @default.
• W3103058964 cites W2123794352 @default.
• W3103058964 cites W2126445541 @default.
• W3103058964 cites W2131817581 @default.
• W3103058964 cites W2133940745 @default.
• W3103058964 cites W2138522501 @default.
• W3103058964 cites W2143105947 @default.
• W3103058964 cites W2150208616 @default.
• W3103058964 cites W2162860634 @default.
• W3103058964 cites W2164468447 @default.
• W3103058964 cites W2170492879 @default.
• W3103058964 cites W2171746390 @default.
• W3103058964 cites W2174216460 @default.
• W3103058964 cites W2195233741 @default.
• W3103058964 cites W2282831130 @default.
• W3103058964 cites W2337302497 @default.
• W3103058964 cites W2347199004 @default.
• W3103058964 cites W2418476089 @default.
• W3103058964 cites W2462542673 @default.
• W3103058964 cites W2582104857 @default.
• W3103058964 cites W2740319436 @default.
• W3103058964 cites W2752554201 @default.
• W3103058964 cites W2773337242 @default.
• W3103058964 cites W2810523021 @default.
• W3103058964 cites W2886578358 @default.
• W3103058964 cites W2888720059 @default.
• W3103058964 cites W2906952461 @default.

• next