Formation of authigenic monazite-(Ce) to monazite-(Nd) from
Upper Carboniferous graywackes of the Drahany Upland: Roles of
the chemical composition of host rock and burial temperature

J 2011

Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature

ČOPJAKOVÁ, Renata, Milan NOVÁK a Eva FRANCŮ

Základní údaje

Originální název

Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature

Autoři

ČOPJAKOVÁ, Renata (203 Česká republika, garant), Milan NOVÁK (203 Česká republika, domácí) a Eva FRANCŮ (203 Česká republika)

Vydání

Lithos, 2011, 0024-4937

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 3.246

Kód RIV

RIV/00216224:14310/11:00056033

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000298070600024

Klíčová slova anglicky

Authigenic monazite;Diagenesis;Very-low grade metamorphism;Graywackes;Lower Carboniferous Culm basin;Bohemian Massif

Štítky

AKR, rivok

Změněno: 14. 3. 2012 08:11, prof. RNDr. Milan Novák, CSc.

Anotace

V originále

Irregular aggregates of monazite-(Ce) to monazite-(Nd)have been found in graywackes from the Protivanov Formation, Drahany Upland, Czech Republic. Textural evidences suggest that they are of authigenic origin and grew during very low-grade metamorphism at a maximum temperature ~200–300C in relation to a deep burial. Authigenic monazite appears to form only in Ca-poor rocks. In Ca-rich graywackes, which underwent the same low-temperature metamorphic overprint, authigenic synchysite-(Ce) or parisite-(Ce) are common instead. Authigenic monazite shows low concentrations of Th, U, Ca, Y+HREE, and a low Eu anomaly. Zoning pattern suggests an evolution in fluid chemistry during diagenesis/very low-grade metamorphism or it relates to different solubility of the individual REE-phosphates. The major source of REEs are detrital minerals mainly monazite. Other minor sources of REEs probably include Fe-oxide/hydroxide and/or clay minerals, which could have contributed to the Nd+MREE-rich cores.

Návaznosti

MSM0021622412, záměr

Název: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Akronym: INCHEMBIOL)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální , regionální a lokální úrovni

Citovat

ČOPJAKOVÁ, Renata, Milan NOVÁK a Eva FRANCŮ. Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature. Lithos. 2011, roč. 127, november, s. 373-385. ISSN 0024-4937.

@article{975151,
   author = {Čopjaková, Renata and Novák, Milan and Franců, Eva},
   article_number = {november},
   keywords = {Authigenic monazite;Diagenesis;Very-low grade metamorphism;Graywackes;Lower Carboniferous Culm basin;Bohemian Massif},
   language = {eng},
   issn = {0024-4937},
   journal = {Lithos},
   title = {Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature},
   volume = {127},
   year = {2011}
}

TY  - JOUR
ID  - 975151
AU  - Čopjaková, Renata - Novák, Milan - Franců, Eva
PY  - 2011
TI  - Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature
JF  - Lithos
VL  - 127
IS  - november
SP  - 373-385
EP  - 373-385
SN  - 00244937
KW  - Authigenic monazite;Diagenesis;Very-low grade metamorphism;Graywackes;Lower Carboniferous Culm basin;Bohemian Massif
N2  - Irregular aggregates of monazite-(Ce) to monazite-(Nd)have been found in graywackes from the Protivanov Formation, Drahany Upland, Czech Republic. Textural evidences suggest that they are of authigenic origin and grew during very low-grade metamorphism at a maximum temperature ~200–300C in relation to a deep burial. Authigenic monazite appears to form only in Ca-poor rocks. In Ca-rich graywackes, which underwent the same low-temperature metamorphic overprint, authigenic synchysite-(Ce) or parisite-(Ce) are common instead. Authigenic monazite shows low concentrations of Th, U, Ca, Y+HREE, and a low Eu anomaly. Zoning pattern suggests an evolution in fluid chemistry during diagenesis/very low-grade metamorphism or it relates to different solubility of the individual REE-phosphates. The major source of REEs are detrital minerals mainly monazite. Other minor sources of REEs probably include Fe-oxide/hydroxide and/or clay minerals, which could have contributed to the Nd+MREE-rich cores.
ER  -

ČOPJAKOVÁ, Renata, Milan NOVÁK a Eva FRANCŮ. Formation of authigenic monazite-(Ce) to monazite-(Nd) from Upper Carboniferous graywackes of the Drahany Upland: Roles of the chemical composition of host rock and burial temperature. \textit{Lithos}. 2011, roč.~127, november, s.~373-385. ISSN~0024-4937.

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