Rare earth element geochemistry of Archean metasedimentary rocks from Kambalda, Western Australia

Bavinton, Owen Alexander; Taylor, Stuart Ross

doi:10.1016/0016-7037(80)90154-4

Cited by 62 publications

(14 citation statements)

References 23 publications

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“…This is consistent with the observation that deep-sea Fe-Mn nodules usu ally contain REE 2 to 4 time of the shale (Fleet, 1984). Two possibilities may explain the poorer A1203 E REE correlation and reduced regression coefficient; one is the high sulfide abundance as sulfides usually contain extremely low REE con centrations (Graf, 1977;Morgan and Wandless, 1980); and the other is the dominance of REE depleted albite as the A1203-bearing minerals in the Kambalda rocks (Bavinton and Taylor, 1980). Clay minerals or their metamorphosed pro ducts, such as muscovite, garnet, sillimanite and chlorite, and feldspar are the most important A1203-bearing phases in sedimentary/ metasedimentary rocks.…”

Section: Witwatersrandsupporting

confidence: 88%

“…For data sources, see text. Taylor, 1980) and Kalgoorlie (Nance and Taylor, 1977) areas, Yilgarn Block, and the West Gneiss Terrain (Taylor et al, 1986) of West Australia, the Witwatersrand Supergroup (Wronkiewicz and Condie, 1987), the Limpopo Belt (Taylor et al, 1986) and the Barberton Mountain Land (Taylor and McLennan, 1985) of South Africa, and the Yellowknife Supergroup (Jenner et al, 1981) and the Kapuskasing Structure Zone (Taylor et al, 1986) of Canada, as well as West Greenland (McLen nan et al, 1984). These consist of 72 pelites / metapelites and 14 sandstones / metasand stones, and are plotted in Fig.…”

Section: Post-archean Sedimentary Rocksmentioning

confidence: 99%

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Al2O3-REE correlations in sedimentary rocks.

Gao

Benren

1991

Geochem. J.

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Linear correlations between A1203 and.E REE (14 REEs) are defined for post-Archean fine-grained clastic sedimentary rocks from the Qinling region, Central China and Australia: E REE = -16(± 71) + 12A12O3, and for Archean fine-grained clastic sedimentary rocks worldwide:One important property of such correlations is the additivity, i.e., the correlation equation for E REE is equal to the sum of the correlation equations for individual REE, and each REE shows a roughly con stant slope. These correlations indicate that the REE of fine-grained clastic sedimentary rocks or metamorphosed equivalents are in general dominantly contained in clay minerals or their metamorphos ed products. Using these correlations, the REE abundances of the upper continental crust, sedimentary cover and Devonian strata were calculated for different tectonic units of the Qinling region. The results generally agree with the estimate from direct sampling within 18%.

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Section: Witwatersrandsupporting

confidence: 88%

Section: Post-archean Sedimentary Rocksmentioning

confidence: 99%

Al2O3-REE correlations in sedimentary rocks.

Gao

Benren

1991

Geochem. J.

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“…However, an important difference between the two areas is of the associated rocks. The HHS metasediments are associated with bi-modal igneous suites, whereas, the Yilgarn rocks are generally associated with mafic and ultramafic suites (Bavinton and Taylor, 1980). Taking into consideration the structural analyses and the and δ 13 C org values, but we note that the lowest and presumably least altered δ 13 C org values also had the highest TOC.…”

Section: Discussionmentioning

confidence: 71%

“…Positive anomalies are generally restricted to plagioclase-rich samples (Nance and Taylor, 1977) or can be ascribed to hydrothermal activity (Bavinton and Taylor, 1980). Eu has an average concentration of 0.16 ppm in DP samples and 0.27 ppm in GJ samples (Table 4b), but these concentrations could have been marginally altered by granulite facies metamorphism (Friend et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Study of Calc-Silicate Rocks of Hammer-Head Syncline from Southern Sandmata Complex, Northwestern India: Implications on Existence of an Archaean Protolith

Purohit¹,

Papineau

Mehta³

et al. 2015

Journal of the Geological Society of India

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Existence of an Archaean protolith is suggested in present study from an ensemble of rocks named as Sandmata Complex from northwestern India which have a debatable stratigraphic status of Archaean vs. Proterozoic. Rocks of the Sandmata Complex are represented by a highly metamorphosed volcano-sedimentary complex with multiple cycles of deformation. The manifold tectono-thermal events have obscured the pristine character of the protoliths. In this work we present geochemical features of calc-silicate protolith that show consistent Archaean affinity in the Hammer-Head Syncline (HHS) from southern part of the Sandmata Complex. Notable geochemical characteristics of calc-silicate metasediments in the HHS include high Th/U, high Cr concentrations, high La/Th, moderate La/Yb, and weak positive Eu anomaly. Carbon and oxygen stable isotope compositions of these carbonate metasediments vary between -3.0 and -0.3‰ (δ 13 C carb ),-11.6 and -35.0 (δ 13 C org ) and -19.1 and -13.4‰, (δ 18 O) respectively. These geochemical observations are in conjunction with the recently published Neoarchaean ages from the HHS and the proximal Hooke syncline.

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“…However, the occurrence of weathering horizons, sediments or felsic volcanics document a break in the volcanic activity, suggesting that the ultrabasics were actually flows similar to the observations made in other regions (Bavinton and Taylor, 1980;Groves et al, 1984) Litherland (1975 suggested that the granitic intrusion and tectonic events of Vumba are accompanied by regional or localized metamorphism. In this belt five different metamorphic phases (M1-M5) are recorded.…”

Section: Geologic Settingmentioning

confidence: 91%

Occurrence of zoned uvarovite—grossular garnet in a rodingite from the Vumba Schist Belt, Botswana, Africa: implications for the origin of rodingites

Mogessie

Rammlmair

1994

Mineral. mag.

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Based on petrographic, mineralogical and geochemical data, two groups of rodingites have been documented from the polymetamorphic Vumba Schist Belt of Botswana. Group I rodingites contain relict chromite grains with zoned uvarovite-grossular + clinopyroxene + epidote/zoisite __+ quartz, whereas group II rodingites contain no chromite and uvarovite. Although the presence of chromite with Cr/(Cr + A1 + Fe 3 +) ratio > 90, similar to chromites found in komatiites, suggests a possible komatiitic origin of group I rodingites, the major and trace element chemical data of most analysed basic rocks from this belt indicate that the protoliths of both groups of rodingites are related to basalt/gabbro of komatiitic affinity. The rodingites formed during the M3 phase of metamorphism.

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Rare earth element geochemistry of Archean metasedimentary rocks from Kambalda, Western Australia

Cited by 62 publications

References 23 publications

Al2O3-REE correlations in sedimentary rocks.

Al2O3-REE correlations in sedimentary rocks.

Study of Calc-Silicate Rocks of Hammer-Head Syncline from Southern Sandmata Complex, Northwestern India: Implications on Existence of an Archaean Protolith

Occurrence of zoned uvarovite—grossular garnet in a rodingite from the Vumba Schist Belt, Botswana, Africa: implications for the origin of rodingites

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