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- W1994411085 endingPage "1034" @default.
- W1994411085 startingPage "1017" @default.
- W1994411085 abstract "Algoma-type BIFs and associated volcanic suites of the Qianxi Group in eastern Hebei Province have undergone high-grade metamorphism and anatexis. The anatectic event is genetically related to high-grade magnetite ores, but the age of the anatectic melting has not been well constrained. We present detailed textural relationship and internal structures of zircon grains and their age data from eight samples of migmatitic rocks representing the different Algoma-type BIF-hosted iron deposits to constrain the formation age of BIF deposition and subsequent anatexis. Six continuous zircon growth stages are distinguished by a series of low-CL and high-CL zones outside from center to edge: inherited magmatic zircon, bright-CL resorption domain, dark-CL recrystallization front, dark-gray-CL diffusion domain, light-gray-CL overgrowth and bright-CL resorption edge. The overgrowths are interpreted as a solid-state diffusion of Zr of primary zircon during interaction with anatectic melt, which resulted in different stages of chemical re-equilibration of primary domains and local re-deposition of newly grown domains on the suitable isostructural substrate of residual magmatic zircon. SHRIMP zircon U–Pb dating of inherited magmatic cores and discrete magmatic grains constrains the peak BIF-deposition age at 2520 Ma, which is different from the peak at 2.75–2.70 Ga for Algoma-type BIFs elsewhere in the world. Zircon U–Pb dating of light-gray-CL rims and newly grown homogeneous grains indicates that the anatectic event lasted from 2511 to 2485 Ma at least, immediately following the BIF deposition. The BIF depositional event is consistent with widespread late Neoarchean magmatism, and the anatectic event is consistent with regional metamorphic events in the eastern part of the North China Craton." @default.
- W1994411085 created "2016-06-24" @default.
- W1994411085 creator A5006817139 @default.
- W1994411085 creator A5009319032 @default.
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- W1994411085 creator A5045172905 @default.
- W1994411085 creator A5048379858 @default.
- W1994411085 creator A5050554164 @default.
- W1994411085 creator A5054341736 @default.
- W1994411085 creator A5064226443 @default.
- W1994411085 date "2015-12-01" @default.
- W1994411085 modified "2023-09-27" @default.
- W1994411085 title "Zircon growth and ages of migmatites in the Algoma-type BIF-hosted iron deposits in Qianxi Group from eastern Hebei Province, China: Timing of BIF deposition and anatexis" @default.
- W1994411085 cites W124488315 @default.
- W1994411085 cites W1521262137 @default.
- W1994411085 cites W1925384858 @default.
- W1994411085 cites W1963731894 @default.
- W1994411085 cites W1963763654 @default.
- W1994411085 cites W1966700794 @default.
- W1994411085 cites W1967082681 @default.
- W1994411085 cites W1967187468 @default.
- W1994411085 cites W1967635228 @default.
- W1994411085 cites W1972050587 @default.
- W1994411085 cites W1972295324 @default.
- W1994411085 cites W1973876227 @default.
- W1994411085 cites W1974090077 @default.
- W1994411085 cites W1974438203 @default.
- W1994411085 cites W1977431633 @default.
- W1994411085 cites W1978257403 @default.
- W1994411085 cites W1980858373 @default.
- W1994411085 cites W1983428444 @default.
- W1994411085 cites W1985563032 @default.
- W1994411085 cites W1989945922 @default.
- W1994411085 cites W1990593047 @default.
- W1994411085 cites W1995582023 @default.
- W1994411085 cites W1996180876 @default.
- W1994411085 cites W1996836984 @default.
- W1994411085 cites W1998214227 @default.
- W1994411085 cites W2005030647 @default.
- W1994411085 cites W2005851587 @default.
- W1994411085 cites W2006991140 @default.
- W1994411085 cites W2009275072 @default.
- W1994411085 cites W2010409639 @default.
- W1994411085 cites W2010661419 @default.
- W1994411085 cites W2013388505 @default.
- W1994411085 cites W2014793769 @default.
- W1994411085 cites W2019060904 @default.
- W1994411085 cites W2021594797 @default.
- W1994411085 cites W2022737532 @default.
- W1994411085 cites W2025746220 @default.
- W1994411085 cites W2026287564 @default.
- W1994411085 cites W2027170597 @default.
- W1994411085 cites W2027368616 @default.
- W1994411085 cites W2030996811 @default.
- W1994411085 cites W2032392145 @default.
- W1994411085 cites W2032975395 @default.
- W1994411085 cites W2033324773 @default.
- W1994411085 cites W2034300846 @default.
- W1994411085 cites W2035608336 @default.
- W1994411085 cites W2036174339 @default.
- W1994411085 cites W2037145527 @default.
- W1994411085 cites W2038019149 @default.
- W1994411085 cites W2040287076 @default.
- W1994411085 cites W2040900496 @default.
- W1994411085 cites W2042693962 @default.
- W1994411085 cites W2043003723 @default.
- W1994411085 cites W2044655244 @default.
- W1994411085 cites W2048722334 @default.
- W1994411085 cites W2049120158 @default.
- W1994411085 cites W2049653977 @default.
- W1994411085 cites W2051270919 @default.
- W1994411085 cites W2052028650 @default.
- W1994411085 cites W2052348573 @default.
- W1994411085 cites W2052443737 @default.
- W1994411085 cites W2055199434 @default.
- W1994411085 cites W2055715194 @default.
- W1994411085 cites W2059872827 @default.
- W1994411085 cites W2060313404 @default.
- W1994411085 cites W2061359484 @default.
- W1994411085 cites W2063745658 @default.
- W1994411085 cites W2065162710 @default.
- W1994411085 cites W2068266154 @default.
- W1994411085 cites W2068403951 @default.
- W1994411085 cites W2073369201 @default.
- W1994411085 cites W2073671610 @default.
- W1994411085 cites W2074342560 @default.
- W1994411085 cites W2074463249 @default.
- W1994411085 cites W2075666876 @default.
- W1994411085 cites W2076824013 @default.
- W1994411085 cites W2077085454 @default.
- W1994411085 cites W2078602930 @default.
- W1994411085 cites W2079946659 @default.
- W1994411085 cites W2082610919 @default.
- W1994411085 cites W2083326010 @default.
- W1994411085 cites W2087099055 @default.
- W1994411085 cites W2087113250 @default.
- W1994411085 cites W2091121315 @default.
- W1994411085 cites W2091985554 @default.