Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO
The paper presents a mineralogical description of Sr-bearing phosphates of the apatite supergroup found in eudialyte-aegirine-albite rocks of the Konder pluton, Khabarovsk krai. The Sr-dominant phases are associated with minerals of the lamprophyllite group and titanite, whereas the Ca-dominant phas...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
South Urals Federal Research Center of Mineralogy and Geoecology UB RAS
2021-12-01
|
| Series: | Минералогия |
| Subjects: | |
| Online Access: | https://journal.mineralogy.ru/wp-content/uploads/2021/12/2021_7_4_3.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823856508713041920 |
|---|---|
| author | A.S. Osipov A.A. Antonov N.S. Vlasenko |
| author_facet | A.S. Osipov A.A. Antonov N.S. Vlasenko |
| author_sort | A.S. Osipov |
| collection | DOAJ |
| description | The paper presents a mineralogical description of Sr-bearing phosphates of the apatite supergroup found in eudialyte-aegirine-albite rocks of the Konder pluton, Khabarovsk krai. The Sr-dominant phases are associated with minerals of the lamprophyllite group and titanite, whereas the Ca-dominant phases are associated with calciocatapleite and kainosite-(Y), which are the products of the decomposition of eudialyte. The phosphates probably formed during post-magmatic alteration of host rock in a following sequence: stronadelphite → fluorostrophite → Sr-rich fluorapatite (fluorocaphite) → Na-REE-fluorapatite. Their variable chemical composition indicates decreasing Sr, Ba and F contents and increasing Ca, Na, REE and (OH) contents during crystallization. The crystallization sequence could reflect a decrease in alkalinity of the mineral-forming conditions. |
| format | Article |
| id | doaj-art-83ad7b0fd9414af7bf070da5e721ba0b |
| institution | Kabale University |
| issn | 2313-545X 2782-2044 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | South Urals Federal Research Center of Mineralogy and Geoecology UB RAS |
| record_format | Article |
| series | Минералогия |
| spelling | doaj-art-83ad7b0fd9414af7bf070da5e721ba0b2025-02-12T08:20:17ZengSouth Urals Federal Research Center of Mineralogy and Geoecology UB RASМинералогия2313-545X2782-20442021-12-0174486110.35597/2313-545X-2021-7-4-3Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KOA.S. Osipov0A.A. Antonov1N.S. Vlasenko2St. Petersburg State UniversityKarpinsky Russian Geological Research InstituteSt. Petersburg State UniversityThe paper presents a mineralogical description of Sr-bearing phosphates of the apatite supergroup found in eudialyte-aegirine-albite rocks of the Konder pluton, Khabarovsk krai. The Sr-dominant phases are associated with minerals of the lamprophyllite group and titanite, whereas the Ca-dominant phases are associated with calciocatapleite and kainosite-(Y), which are the products of the decomposition of eudialyte. The phosphates probably formed during post-magmatic alteration of host rock in a following sequence: stronadelphite → fluorostrophite → Sr-rich fluorapatite (fluorocaphite) → Na-REE-fluorapatite. Their variable chemical composition indicates decreasing Sr, Ba and F contents and increasing Ca, Na, REE and (OH) contents during crystallization. The crystallization sequence could reflect a decrease in alkalinity of the mineral-forming conditions.https://journal.mineralogy.ru/wp-content/uploads/2021/12/2021_7_4_3.pdfstronadelphitefluorostrophitefluorocaphitesr-rich fluorapatitefluorapatitealkaline rockshydrothermal alterationskonder plutonalkaline-ultramafic complexes |
| spellingShingle | A.S. Osipov A.A. Antonov N.S. Vlasenko Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO Минералогия stronadelphite fluorostrophite fluorocaphite sr-rich fluorapatite fluorapatite alkaline rocks hydrothermal alterations konder pluton alkaline-ultramafic complexes |
| title | Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO |
| title_full | Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO |
| title_fullStr | Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO |
| title_full_unstemmed | Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO |
| title_short | Sr-BEARING PHOSPHATES OF THE APATITE SUPERGROUP FROM THE ALKALINE ROCKS OF THE KO |
| title_sort | sr bearing phosphates of the apatite supergroup from the alkaline rocks of the ko |
| topic | stronadelphite fluorostrophite fluorocaphite sr-rich fluorapatite fluorapatite alkaline rocks hydrothermal alterations konder pluton alkaline-ultramafic complexes |
| url | https://journal.mineralogy.ru/wp-content/uploads/2021/12/2021_7_4_3.pdf |
| work_keys_str_mv | AT asosipov srbearingphosphatesoftheapatitesupergroupfromthealkalinerocksoftheko AT aaantonov srbearingphosphatesoftheapatitesupergroupfromthealkalinerocksoftheko AT nsvlasenko srbearingphosphatesoftheapatitesupergroupfromthealkalinerocksoftheko |