Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 324 |
| Seiten (von - bis) | 1-9 |
| Seitenumfang | 9 |
| Fachzeitschrift | Minerals |
| Jahrgang | 11 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 20 März 2021 |
Abstract
Amphibole (Amp) plays a crucial role in the study of several earth and planetary processes. One of its most common applications is in thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers require the input of melt composition, which is not always available in volcanic products (e.g., partially crystallized melts or devitrified glasses), or show rather high errors for characterizing the depth of magma chambers. In this work, a new version of amphibole thermobarometry based on the selection of recently published high-quality experimental data is reported. It is valid for Mg-rich calcic amphiboles in magmatic equilibrium with calc-alkaline or alkaline melts across a wide P-T range (up to 2200 MPa and 1130◦ C) and presents the advantage of being a single-phase model with relatively low errors (P ±12%, T ±22◦ C, logf O2 ±0.3, H2 O in the melt ±14%). A user-friendly spreadsheet (Amp-TB2.xlsx) for calculating the physico-chemical parameters from the composition of natural amphiboles is also reported. It gives warnings whenever the input composition is incorrect or diverges from that of the calibration data and includes diagrams for an easy graphical representation of the results.
ASJC Scopus Sachgebiete
- Erdkunde und Planetologie (insg.)
- Geotechnik und Ingenieurgeologie
- Erdkunde und Planetologie (insg.)
- Geologie
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in: Minerals, Jahrgang 11, Nr. 3, 324, 20.03.2021, S. 1-9.
Publikation: Beitrag in Fachzeitschrift › Übersichtsarbeit › Forschung › Peer-Review
}
TY - JOUR
T1 - Amp-tb2
T2 - An updated model for calcic amphibole thermobarometry
AU - Ridolfi, Filippo
N1 - Funding Information: Funding: This research was funded by the Alexander von Humboldt-Stiftung, with a research fellowship to the author, and the Deutsche Forschungsgemeinschaft (DFG), grant number 60422335.A.
PY - 2021/3/20
Y1 - 2021/3/20
N2 - Amphibole (Amp) plays a crucial role in the study of several earth and planetary processes. One of its most common applications is in thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers require the input of melt composition, which is not always available in volcanic products (e.g., partially crystallized melts or devitrified glasses), or show rather high errors for characterizing the depth of magma chambers. In this work, a new version of amphibole thermobarometry based on the selection of recently published high-quality experimental data is reported. It is valid for Mg-rich calcic amphiboles in magmatic equilibrium with calc-alkaline or alkaline melts across a wide P-T range (up to 2200 MPa and 1130◦ C) and presents the advantage of being a single-phase model with relatively low errors (P ±12%, T ±22◦ C, logf O2 ±0.3, H2 O in the melt ±14%). A user-friendly spreadsheet (Amp-TB2.xlsx) for calculating the physico-chemical parameters from the composition of natural amphiboles is also reported. It gives warnings whenever the input composition is incorrect or diverges from that of the calibration data and includes diagrams for an easy graphical representation of the results.
AB - Amphibole (Amp) plays a crucial role in the study of several earth and planetary processes. One of its most common applications is in thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers require the input of melt composition, which is not always available in volcanic products (e.g., partially crystallized melts or devitrified glasses), or show rather high errors for characterizing the depth of magma chambers. In this work, a new version of amphibole thermobarometry based on the selection of recently published high-quality experimental data is reported. It is valid for Mg-rich calcic amphiboles in magmatic equilibrium with calc-alkaline or alkaline melts across a wide P-T range (up to 2200 MPa and 1130◦ C) and presents the advantage of being a single-phase model with relatively low errors (P ±12%, T ±22◦ C, logf O2 ±0.3, H2 O in the melt ±14%). A user-friendly spreadsheet (Amp-TB2.xlsx) for calculating the physico-chemical parameters from the composition of natural amphiboles is also reported. It gives warnings whenever the input composition is incorrect or diverges from that of the calibration data and includes diagrams for an easy graphical representation of the results.
KW - Alkaline magma
KW - Amphibole
KW - Calc-alkaline magma
KW - Igneous rock
KW - Magma chamber
KW - Magma feeding system
KW - Thermobarometry
KW - Volcanoes
UR - http://www.scopus.com/inward/record.url?scp=85102694531&partnerID=8YFLogxK
U2 - 10.3390/min11030324
DO - 10.3390/min11030324
M3 - Review article
AN - SCOPUS:85102694531
VL - 11
SP - 1
EP - 9
JO - Minerals
JF - Minerals
SN - 2075-163X
IS - 3
M1 - 324
ER -