THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES
The pressure-temperature conditions of the reactions governing the high-pressure stability of talc were investigated in experiments on the bulk composition Mg3Si4O10(OH)2 + H2O at 2.9-6.8 GPa, 650-820°C, using piston-cylinder and multianvil apparatus. The reaction talc = enstatite + coesite + vapor...
| Main Authors: | , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
1995
|
| _version_ | 1797065801605316608 |
|---|---|
| author | Pawley, A Wood, B |
| author_facet | Pawley, A Wood, B |
| author_sort | Pawley, A |
| collection | OXFORD |
| description | The pressure-temperature conditions of the reactions governing the high-pressure stability of talc were investigated in experiments on the bulk composition Mg3Si4O10(OH)2 + H2O at 2.9-6.8 GPa, 650-820°C, using piston-cylinder and multianvil apparatus. The reaction talc = enstatite + coesite + vapor was bracketed between 800 and 820°C at 2.90-2.95 GPa and between 770 and 780°C at 3.77-4.02 GPa. The lower-pressure bracket, which is just above the quartz-coesite phase transition, is consistent with some of the previous brackets on the reaction talc = enstatite + quartz + vapor and with the position of the talc dehydration reaction calculated using THERMOCALC v2.4. This revised version of THERMOCALC incorporates new compressibility and thermal expansivity data for talc. -from Authors |
| first_indexed | 2024-03-06T21:33:47Z |
| format | Journal article |
| id | oxford-uuid:458dd68e-ca73-4464-ace8-2bcaf2b93ae6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:33:47Z |
| publishDate | 1995 |
| record_format | dspace |
| spelling | oxford-uuid:458dd68e-ca73-4464-ace8-2bcaf2b93ae62022-03-26T15:08:24ZTHE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONESJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:458dd68e-ca73-4464-ace8-2bcaf2b93ae6EnglishSymplectic Elements at Oxford1995Pawley, AWood, BThe pressure-temperature conditions of the reactions governing the high-pressure stability of talc were investigated in experiments on the bulk composition Mg3Si4O10(OH)2 + H2O at 2.9-6.8 GPa, 650-820°C, using piston-cylinder and multianvil apparatus. The reaction talc = enstatite + coesite + vapor was bracketed between 800 and 820°C at 2.90-2.95 GPa and between 770 and 780°C at 3.77-4.02 GPa. The lower-pressure bracket, which is just above the quartz-coesite phase transition, is consistent with some of the previous brackets on the reaction talc = enstatite + quartz + vapor and with the position of the talc dehydration reaction calculated using THERMOCALC v2.4. This revised version of THERMOCALC incorporates new compressibility and thermal expansivity data for talc. -from Authors |
| spellingShingle | Pawley, A Wood, B THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title | THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title_full | THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title_fullStr | THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title_full_unstemmed | THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title_short | THE HIGH-PRESSURE STABILITY OF TALC AND 10 ANGSTROM PHASE - POTENTIAL STORAGE SITES FOR H2O IN SUBDUCTION ZONES |
| title_sort | high pressure stability of talc and 10 angstrom phase potential storage sites for h2o in subduction zones |
| work_keys_str_mv | AT pawleya thehighpressurestabilityoftalcand10angstromphasepotentialstoragesitesforh2oinsubductionzones AT woodb thehighpressurestabilityoftalcand10angstromphasepotentialstoragesitesforh2oinsubductionzones AT pawleya highpressurestabilityoftalcand10angstromphasepotentialstoragesitesforh2oinsubductionzones AT woodb highpressurestabilityoftalcand10angstromphasepotentialstoragesitesforh2oinsubductionzones |