| Reference Type | Journal (article/letter/editorial) |
|---|
| Title | Halogen-rich scapolite-biotite rocks from the Tongmugou Pb-Zn deposit, Qinling, northwestern China: implications for the ore-forming processes |
|---|
| Journal | Mineralogical Magazine | ISSN | 0026-461X |
|---|
| Authors | Jiang, Shao-Yong | Author |
|---|
| Palmer, M. R. | Author |
| Xue, Chun-Ji | Author |
| Li, Yan-He | Author |
| Year | 1994 (December) | Volume | 58 |
|---|
| Issue | 393 |
|---|
| Publisher | Mineralogical Society |
|---|
| Download URL | https://rruff.info/doclib/MinMag/Volume_58/58-393-543.pdf+ |
|---|
| DOI | doi:10.1180/minmag.1994.058.393.02Search in ResearchGate |
|---|
| Generate Citation Formats |
|---|
| Mindat Ref. ID | 2078 | Long-form Identifier | mindat:1:5:2078:1 |
|---|
|
| GUID | 0 |
|---|
| Full Reference | Jiang, Shao-Yong, Palmer, M. R., Xue, Chun-Ji, Li, Yan-He (1994) Halogen-rich scapolite-biotite rocks from the Tongmugou Pb-Zn deposit, Qinling, northwestern China: implications for the ore-forming processes. Mineralogical Magazine, 58 (393) 543-552 doi:10.1180/minmag.1994.058.393.02 |
|---|
| Plain Text | Jiang, Shao-Yong, Palmer, M. R., Xue, Chun-Ji, Li, Yan-He (1994) Halogen-rich scapolite-biotite rocks from the Tongmugou Pb-Zn deposit, Qinling, northwestern China: implications for the ore-forming processes. Mineralogical Magazine, 58 (393) 543-552 doi:10.1180/minmag.1994.058.393.02 |
|---|
| In | (1994, December) Mineralogical Magazine Vol. 58 (393) Mineralogical Society |
|---|
| Abstract/Notes | AbstractCoexisting scapolite, biotite and hornblende in scapolite-biotite rocks from the Tongmugou Pb-Zn deposit, Qinling, northwestern China are characterized by high levels of chlorine. Scapolite composition varies from EqAn27 to EqAn47 with 47β80 wt.% Cl. The scapolite composition is a sensitive indicator of the NaCl activity in coexisting hydrothermal fluid. Biotite contains 0.3β1.2 wt. % Cl and also has high F contents (0.2β0.7 wt.%). The hornblende is a Cl-rich hastingsite with Cl>3.5 wt.% and high (Na2O + K2O) contents (3.2β3.9 wt. %), high Xk [= K/(K + Na)] values (0.45β0.55) and high XFc [= Fe/(Fe + Mg)] values (0.76β0.79). The chlorine within these minerals is thought to be derived from evolved seawater. The scapolite-biotite rocks are products of Cl-rich alteration of volcanoclastic sedimentary rocks during submarine hydrothermal processes. Multiple-stage hydrothermal activity culminated with the circulation of a high-NaCl fluid that was also responsible for the formation of the massive sulphide deposits. |
|---|
These are possibly similar items as determined by title/reference text matching only.
