U-Pb and Th-Pb dating of apatite by LA-ICPMS | David Chew - dating.freebeeb.net U-Pb and Th-Pb dating of apatite by LA-ICPMS | David Chew - dating.freebeeb.net

U-th-pb dating of apatite madagascar, article versions

Bulletin de la Societe Geologique de France,— Canadian Mineralogist, 21, — The complicated process can modify parents lithology both compositionally and textually.

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During transportation and deposition, detritus is subject to mechanical breakdown, chemical alternation and sorting. If there is a downward increasing trend of illite components in a drilling core, we can not conclude that early detrital record indicate more illite-yield source rock but possibly as a result of burial and alternation of minerals [75] Hinterland structural assumption[ edit ] Structural assumption influence on provenance interpretation, left two cross sections are two hinterland structural assumptions and the right column is a foreland basin stratigraphy which shows variations of detrital record.

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Geological Society of Canada Short Course. Their geochemical compositions are homogeneous although they intrude a large geographical area subdivided into several domains each characterized by different tectonic-metamorphic settings.

All these factors pose certain limits on our capability to restore the characteristics of source rocks from the properties of the produced detrital record.

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Geochimica et Cosmochimica Acta, 48, — These will affect chance of success of exploration project; In development stage, mineralogical and chemical techniques are widely used to estimate reservoir zonation and correlation of stratigraphy. The mineralogical descriptions of the samples investigated in this study are listed in Table 1and all samples were retrieved from the Stop 2.

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Intrusions identified on the map are: Summary of the mineralogy of the main rock types at Oka. This could cause misinterpretation in correlation sediment to source later.

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In two okaite samples Oka and Okaperovskite exhibits zoning as evidenced in optical microscopy and back-scattered electron BSE imagery e. Hinterland structural setting is estimated by field mapping work.

B Geological map of the Oka carbonatite complex [ 1015 ].

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Geochimica et Cosmochimica Acta,39—