Zobrazeno 1 - 10
of 91
pro vyhledávání: '"КАЛЬЦИТ"'
Publikováno v:
Геология и геофизика Юга России, Vol 13, Iss 4 (2023)
Актуальность работы. Содержание ОКТ (опал-кристобалит-тридимитовой) фазы и цеолитов в кремнисто-карбонатных породах Дагестана суммарно
Externí odkaz:
https://doaj.org/article/94c205e5d9a445719285394c2c986732
Autor:
D. A. Petrochenkov, E. Yu. Baraboshkin
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 2, Pp 47-56 (2022)
Background. Ammonite products are increasingly gaining in popularity. Ammonites are characterised by a variety of colour shades, shapes and sizes, making them suitable for manufacturing a wide range of souvenir and jewellery products. Russia enjoys s
Externí odkaz:
https://doaj.org/article/37705d900c084bcf99fea213f4edc601
Publikováno v:
Геология и геофизика Юга России, Vol 12, Iss 4 (2022)
Актуальность работы. Широкое распространение на территории Республики Дагестан имеют кремнисто – карбонатные породы, в которых суммар
Externí odkaz:
https://doaj.org/article/a3e7954ee11344589a9782a2e629483a
Publikováno v:
Vestnik Permskogo Universiteta: Seriâ Geologiâ, Vol 18, Iss 2, Pp 152-164 (2019)
Carbonate mineralization of ore-bearing rocks of the Safianovskoe massive copper sulphide deposit (Middle Urals) is presented by calcite, Fe-magnesite, dolomite and siderite. The types of carbonate mineralization and their spatial distribution in vic
Externí odkaz:
https://doaj.org/article/bcc2263695db43a3a0a228b5de7fe2f6
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 2, Pp 21-27 (2019)
Septaria of the Ulyanovsk region are high-quality jewelry and ornamental material. Septaria are associated with lower Cretaceous sediments and are located in the coastal cliffs and the beach area of the Volga river. Septaria consist mainly of calcite
Externí odkaz:
https://doaj.org/article/ed5e2b33890c45128ea0a2b24c30c40d
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 1, Pp 32-38 (2019)
For the first time, data on the mineral composition and gemological characteristics of the jewelry-ornamental ammonites of the Republic of Adygea have been presented. Ammonites consist mainly of the calcite with inclusions of quartz, glauconite, kaol
Externí odkaz:
https://doaj.org/article/196c2021c20e4b5ba0f52b4592ae458a
Publikováno v:
Литосфера, Vol 0, Iss 2, Pp 138-143 (2019)
Карбонатные тела Теплогорского месторождения имеют отчетливые признаки магматического происхождения: резкие (рвущие) контакты с вмеща
Externí odkaz:
https://doaj.org/article/2f4438d3a14949ecb84b6a158ca49941
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 6, Pp 18-40 (2019)
For the first time, the mineral composition and gemological characteristics of the petrified wood from the Ulyanovsk region, of jewelry and ornamental quality, have been studied. The petrified wood is associated with the Lower Cretaceous deposits and
Externí odkaz:
https://doaj.org/article/a7ded3124cce4a66a703bd33adde9dfa
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 5, Pp 12-16 (2018)
Fossils of marine reptiles are a new jewelry and ornamental material and collected in the Ulyanovsk region from the Upper Jurassic deposits. They consist of (wt. %): calcite — 52, apatite — 24 and pyrite — 23, and also gypsum presents. The cont
Externí odkaz:
https://doaj.org/article/6415e9a65eaa4d3990fa70501b53c3ef
Autor:
D. A. PETROCHENKOV
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 4, Pp 83-87 (2018)
Sengilite is a trade mark of florogenic jewelry and ornamental material being mined around the village Sengilei of the Ulyanovsk region. The sangilite is a lithofected marine plant remains cemented in marl. The sangilite mainly consists of calcite (f
Externí odkaz:
https://doaj.org/article/397320f9781c4489a14c03c2b6b9e5fb