Tourmaline in a low grade clastic metasedimentary rock: an example of the petrogenetic potential of tourmaline

Henry, Darrell J.; Dutrow, Bárbara L.

doi:10.1007/bf00310455

Cited by 119 publications

(102 citation statements)

References 27 publications

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“…The pres ence of the in ner and outer rims sep a rated by compositional dis con ti nu ities around some in her ited cores sug gests punc tu ated evo lu tion of the overgrowths. This im plies that bo ron was spo rad i cally avail able dur ing diagenesis and meta mor phism (Henry and Dutrow, 1992).…”

Section: Heavy Minerals and Their Possible Originsupporting

confidence: 60%

Heavy minerals from sedimentary rocks of the Malcov Formation and their palaeogeographic implications for evolution of the Magura Basin (Western Carpathians, Slovakia) during the Late Eocene – Late Oligocene

Bónová

Bóna²,

Kováčik

et al. 2016

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Section: Heavy Minerals and Their Possible Originsupporting

confidence: 60%

Heavy minerals from sedimentary rocks of the Malcov Formation and their palaeogeographic implications for evolution of the Magura Basin (Western Carpathians, Slovakia) during the Late Eocene – Late Oligocene

Bónová

Bóna²,

Kováčik

et al. 2016

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“…No clear-cut re la tion ship be tween tour ma line col our and chem i cal com po si tion was found, cor rob o rat ing the ob ser va tion that tour ma line col our de pends on many fac tors (e.g., Henry and Dutrow, 1992). The pre dom i nant brown and green va ri et ies could be ei ther mag ne sium-or iron-rich.…”

Section: Mineral Chemistrymentioning

confidence: 91%

“…Fur ther study by Henry and Guidotti (1985) showed that the ex ten sive compositional vari abil ity of tour ma line responds to the host en vi ron ment in which the min eral crys tallised and, by in fer ence, was the ba sis for in tro duc ing dis crim ina tion di a grams link ing the chem i cal com po si tion of tour maline to spe cific source rocks. This method was fur ther de vel - Strata youn ger than Cre ta ceous are omit ted; com piled and mod i fied from Aleksandrowski et al (1997) and Krenz et al (2000); in set shows the en tire Bo he mian Mas sif (sim pli fied from Dallmeyer et al, 1995); GSM -Góry Sowie Mas sif, SM -Strzelin Mas sif, WG -Wleñ Graben oped and elab o rated in the work of Henry and Dutrow (1992). Since then, tour ma line has be come an ef fec tive in di ca tor of the prov e nance of clastic rocks (e.g., Nascimento et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Provenance of Upper Cretaceous quartz-rich sandstones from the North Sudetic Synclinorium, SW Poland: constraints from detrital tourmaline

Biernacka

2012

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J. (2012) -Prov e nance of Up per Cre ta ceous quartz-rich sand stones from the North Sudetic Synclinorium, SW Po land: constraints from de tri tal tour ma line. Geol. Quart., 56 (2): 315-332, doi: 10.7306/gq.1024Up per Cre ta ceous quartz arenites that fill the North Sudetic Synclinorium on the north ern pe riph ery of the Variscan Bo he mian Mas sif show high compositional but low tex tural ma tu rity. They have been in ter preted for years as de rived largely from nearby gran ite plutons, i.e. as first-cy cle sed i ments. A dif fer ent prov e nance was re vealed on the ba sis of a com bined light and heavy min eral anal y sis, and par ticu larly a de tri tal tour ma line study, given that tour ma line is a sen si tive in di ca tor of gra nitic/meta mor phic/sed i men tary (multi-re cy cling) or i gin. Cenomanian, Turonian, Coniacian and Santonian sand stones con tain abun dant an gu lar tour ma line grains, to gether with zir con and rutile, and subordinately staurolite, gar net, ana tase, kyan ite, sillimanite and monazite. The suc ces sive -Cenomanian to Santoniantour ma line pop u la tions are sim i lar with re gard to shape, col our and chem i cal com po si tion. The lat ter points un am big u ously to var i ous meta mor phic rocks with a pre dom i nant group of Al-rich metapelites (Al-rich, F-poor dravite). It is con cluded that, in the Late Cre taceous, large Sudetic gran ite plutons such as the Karkonosze and Strzegom-Sobótka mas sifs were not ex posed but were bur ied un der a thick siliciclastic cover. These re sults cou pled with pub lished ap a tite fis sion-track data from the gra nitic Karkonosze Pluton and the gneissic/migmatitic Góry Sowie Mas sif re veal that Late Cre ta ceous quartz arenites of the North Sudetic Synclinorium re flect grad ual exhu ma tion of the sur round ing mas sifs, but do not re cord the fi nal ex po sure of crys tal line rocks. Since the lat est Turonian, this ex hu ma tion cor re sponded to the Late Cre ta ceous in ver sion ep i sode in Cen tral Eu rope. The tex tural im ma tu rity of Up per Cre ta ceous sand stones is mis lead ing in terms of their re cy cled or i gin, and it is in her ited from im ma ture clastic source rocks.

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“…The tourmalines of the Rio do Oliveira tourmalinites fall in field 4 of Henry and Guidotti's (1985) Fe-AlMg diagram ( Figure 5A), which is the field of tourmalines from metapelites and metapsammites coexisting with an Al-saturating phase. In the Ca/(Ca+Na) versus Mg# [= Mg/(Mg+Fe), atomic proportions] diagram of Figure 5B, the Rio do Oliveira tourmalines fall close to the dravite end-member.…”

Section: Mineral Chemistry Electron Microprobe Analyses (Epma)mentioning

confidence: 99%

Tourmalinites of the Brusque Group in the São João Batista-Tijucas area, State of Santa Catarina, Brazil

Garda

Brentan

Basei

2013

Geol. USP, Sér. cient.

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The Dom Feliciano Belt, in the State of Santa Catarina, is represented by the Itajaí and Brusque groups and the Florianópolis Batholith. The basal Rio do Oliveira Formation of the Brusque Group consists of metabasic/calc-silicate, metavolcanic-exhalative, metapelitic and metapsammitic units. A discontinuous tourmalinite sequence integrating the metavolcanic-exhalative unit stretches out from São João Batista to Tijucas. Two types of tourmalinites were distinguished and named Rio do Oliveira and Morro do Carneiro. The first is very fine-grained, banded, and composed of greenish-yellow or brown tourmaline. The second is coarser-grained, massive to slightly foliated, and composed of color-zoned tourmaline. Microprobe and laser ablation-ICPMS analyses showed that the Rio do Oliveira tourmaline is richer in Al, alkalis, and poorer in Ti, Mg, Fe and Ca when compared to the Morro do Carneiro tourmaline. Rio do Oliveira tourmalinites were formed by selective substitution of pelitic and psammitic sediments by percolation of B-rich fluids through the volcanic-sedimentary unit during diagenesis and metamorphism. Morro do Carneiro tourmaline has detrital cores and rims enriched in Mg, Fe, Ti, Mn, Sr, Co and Ca, when compared to the Rio do Oliveira tourmaline. An intermediate dark zone is Ti-and Fe-rich. The abrupt increase in Ca from core to rim may have resulted from the equilibrium with the surrounding Ca-rich environment (underlying calc-silicate rocks). Even if the REE patterns obtained for Rio do Oliveira and Morro do Carneiro tourmalines are practically identical, it is proposed that the fluids that generated the Morro do Carneiro tourmalinites have also been metasomatic/igneous. Keywords: Dom Feliciano Belt; Brusque Group; Tourmalinites.Resumo O Cinturão Dom Feliciano no Estado de Santa Catarina é representado pelos grupos Itajaí e Brusque e o Batólito Florianópolis. A Formação Rio do Oliveira, basal do Grupo Brusque, constitui-se de unidades metabásicas/cálcio-silicáticas, metavulcânicas-exalativas, metapelíticas e metapsamíticas. Uma sequência descontínua de turmalinitos integrante da unidade metavulcânica-exalativa estende-se desde São João Batista até Tijucas. Dois tipos de turmalinitos foram distintos e denominados Rio do Oliveira e Morro do Carneiro. O primeiro é muito fino, bandado e composto por turmalina amarela-esverdeada ou castanha. O segundo é mais grosso, de textura maciça a levemente foliada, e formado por turmalina zonada. Análises por microssonda eletrônica e laser ablation-ICPMS mostraram que a turmalina do Rio do Oliveira é mais rica em Al, álcalis e mais pobre em Ti, Mg, Fe and Ca quando comparada com a do Morro do Carneiro. Os turmalinitos do Rio do Oliveira formaram-se por substituição seletiva de sedimentos pelíticos e psammíticos resultante da percolação de fluidos ricos em boro pela unidade vulcano-sedimentar durante a diagênese e metamorfismo. A turmalina do Morro do Carneiro possui núcleos detríticos e bordas mais ricas em Mg, Fe, Ti, Mn, Sr, Co e Ca que a turmalina do Rio do Olivei...

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Tourmaline in a low grade clastic metasedimentary rock: an example of the petrogenetic potential of tourmaline

Cited by 119 publications

References 27 publications

Heavy minerals from sedimentary rocks of the Malcov Formation and their palaeogeographic implications for evolution of the Magura Basin (Western Carpathians, Slovakia) during the Late Eocene – Late Oligocene

Heavy minerals from sedimentary rocks of the Malcov Formation and their palaeogeographic implications for evolution of the Magura Basin (Western Carpathians, Slovakia) during the Late Eocene – Late Oligocene

Provenance of Upper Cretaceous quartz-rich sandstones from the North Sudetic Synclinorium, SW Poland: constraints from detrital tourmaline

Tourmalinites of the Brusque Group in the São João Batista-Tijucas area, State of Santa Catarina, Brazil

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