Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results

José María González-Jiménez; William L. Griffin; Thomas Kerestedjian; Fernando Gervilla; Suzanne Y. O'Reilly; Joaquín A. Proenza; Norman J. Pearson

Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results

José María González-Jiménez, William L. Griffin, Thomas Kerestedjian, Fernando Gervilla, Suzanne Y. O'Reilly, Joaquín A. Proenza, Norman J. Pearson

ARC Centre of Excellence for Core to Crust Fluid Systems (incorporation ARC National Key Centre for Geochemical evolution and Metallogeny of Continents (GEMOC))

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

Abstract

Using laser-ablation MC-ICPMS we have measured Re-Os isotopes in platinum-group minerals from chromitites of the Dobromirtsi ultramatic massif, Central Rhodopes, Bulgaria. The results show large variations in Os-isotopes ratios reflecting both magmatic and post-magmatic processes. Primary Os-isotope signatures indicate a melt depletion event ca. 415 Ma ago which is consistent with the accepted age of the Hercynian orogeny in the area. These signatures were disturbed during metamorphism by incorporation of Os and Re, resulting in both future and older model ages.

Original language	English
Title of host publication	Let's talk ore deposits
Subtitle of host publication	proceedings of the Eleventh Biennial SGA Meeting
Editors	Fernando Barra, Martin Reich, Eduardo Campos, Fernando Tornos
Place of Publication	Antofagasta, Chile
Publisher	Ediciones Universidad Católica del Norte
Pages	601-603
Number of pages	3
ISBN (Print)	9789562873291
Publication status	Published - 2011
Event	11th SGA Biennial Meeting - Antofagasta, Chile Duration: 26 Sept 2011 → 29 Sept 2011

Conference

Conference	11th SGA Biennial Meeting
Country/Territory	Chile
City	Antofagasta
Period	26/09/11 → 29/09/11

Keywords

Re-Os isotopes
chromite deposits
platinum-group minerals
Bulgarian Rhodopes
Dobromirtsi

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González-Jiménez, J. M., Griffin, W. L., Kerestedjian, T., Gervilla, F., O'Reilly, S. Y., Proenza, J. A., & Pearson, N. J. (2011). Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results. In F. Barra, M. Reich, E. Campos, & F. Tornos (Eds.), Let's talk ore deposits: proceedings of the Eleventh Biennial SGA Meeting (pp. 601-603). Ediciones Universidad Católica del Norte.

González-Jiménez, José María ; Griffin, William L. ; Kerestedjian, Thomas et al. / Re-Os systematics in chromite deposits from the Bulgarian Rhodopes : preliminary results. Let's talk ore deposits: proceedings of the Eleventh Biennial SGA Meeting. editor / Fernando Barra ; Martin Reich ; Eduardo Campos ; Fernando Tornos. Antofagasta, Chile : Ediciones Universidad Católica del Norte, 2011. pp. 601-603

@inproceedings{e0ce3cb80e134c79ba7ea5781bb9d042,

title = "Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results",

abstract = "Using laser-ablation MC-ICPMS we have measured Re-Os isotopes in platinum-group minerals from chromitites of the Dobromirtsi ultramatic massif, Central Rhodopes, Bulgaria. The results show large variations in Os-isotopes ratios reflecting both magmatic and post-magmatic processes. Primary Os-isotope signatures indicate a melt depletion event ca. 415 Ma ago which is consistent with the accepted age of the Hercynian orogeny in the area. These signatures were disturbed during metamorphism by incorporation of Os and Re, resulting in both future and older model ages.",

keywords = "Re-Os isotopes, chromite deposits, platinum-group minerals, Bulgarian Rhodopes, Dobromirtsi",

author = "Gonz{\'a}lez-Jim{\'e}nez, {Jos{\'e} Mar{\'i}a} and Griffin, {William L.} and Thomas Kerestedjian and Fernando Gervilla and O'Reilly, {Suzanne Y.} and Proenza, {Joaqu{\'i}n A.} and Pearson, {Norman J.}",

year = "2011",

language = "English",

isbn = "9789562873291",

pages = "601--603",

editor = "Fernando Barra and Martin Reich and Eduardo Campos and Fernando Tornos",

booktitle = "Let's talk ore deposits",

publisher = "Ediciones Universidad Cat{\'o}lica del Norte",

note = "11th SGA Biennial Meeting ; Conference date: 26-09-2011 Through 29-09-2011",

}

González-Jiménez, JM, Griffin, WL, Kerestedjian, T, Gervilla, F, O'Reilly, SY, Proenza, JA & Pearson, NJ 2011, Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results. in F Barra, M Reich, E Campos & F Tornos (eds), Let's talk ore deposits: proceedings of the Eleventh Biennial SGA Meeting. Ediciones Universidad Católica del Norte, Antofagasta, Chile, pp. 601-603, 11th SGA Biennial Meeting, Antofagasta, Chile, 26/09/11.

Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results. / González-Jiménez, José María; Griffin, William L.; Kerestedjian, Thomas et al.
Let's talk ore deposits: proceedings of the Eleventh Biennial SGA Meeting. ed. / Fernando Barra; Martin Reich; Eduardo Campos; Fernando Tornos. Antofagasta, Chile: Ediciones Universidad Católica del Norte, 2011. p. 601-603.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - Re-Os systematics in chromite deposits from the Bulgarian Rhodopes

T2 - 11th SGA Biennial Meeting

AU - González-Jiménez, José María

AU - Griffin, William L.

AU - Kerestedjian, Thomas

AU - Gervilla, Fernando

AU - O'Reilly, Suzanne Y.

AU - Proenza, Joaquín A.

AU - Pearson, Norman J.

PY - 2011

Y1 - 2011

N2 - Using laser-ablation MC-ICPMS we have measured Re-Os isotopes in platinum-group minerals from chromitites of the Dobromirtsi ultramatic massif, Central Rhodopes, Bulgaria. The results show large variations in Os-isotopes ratios reflecting both magmatic and post-magmatic processes. Primary Os-isotope signatures indicate a melt depletion event ca. 415 Ma ago which is consistent with the accepted age of the Hercynian orogeny in the area. These signatures were disturbed during metamorphism by incorporation of Os and Re, resulting in both future and older model ages.

AB - Using laser-ablation MC-ICPMS we have measured Re-Os isotopes in platinum-group minerals from chromitites of the Dobromirtsi ultramatic massif, Central Rhodopes, Bulgaria. The results show large variations in Os-isotopes ratios reflecting both magmatic and post-magmatic processes. Primary Os-isotope signatures indicate a melt depletion event ca. 415 Ma ago which is consistent with the accepted age of the Hercynian orogeny in the area. These signatures were disturbed during metamorphism by incorporation of Os and Re, resulting in both future and older model ages.

KW - Re-Os isotopes

KW - chromite deposits

KW - platinum-group minerals

KW - Bulgarian Rhodopes

KW - Dobromirtsi

M3 - Conference proceeding contribution

SN - 9789562873291

SP - 601

EP - 603

BT - Let's talk ore deposits

A2 - Barra, Fernando

A2 - Reich, Martin

A2 - Campos, Eduardo

A2 - Tornos, Fernando

PB - Ediciones Universidad Católica del Norte

CY - Antofagasta, Chile

Y2 - 26 September 2011 through 29 September 2011

ER -

González-Jiménez JM, Griffin WL, Kerestedjian T, Gervilla F, O'Reilly SY, Proenza JA et al. Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results. In Barra F, Reich M, Campos E, Tornos F, editors, Let's talk ore deposits: proceedings of the Eleventh Biennial SGA Meeting. Antofagasta, Chile: Ediciones Universidad Católica del Norte. 2011. p. 601-603

Re-Os systematics in chromite deposits from the Bulgarian Rhodopes: preliminary results

Abstract

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