Zobrazeno 1 - 10
of 30
pro vyhledávání: '"D. A. PETROCHENKOV"'
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
Autor:
D. A. Petrochenkov, A. V. Petrov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 4, Pp 18-25 (2019)
For the first time, the mineral composition and structural features of jewelry ammonite from mine OJSC «Mikhailovcement» in Ryazan Region are studied in detail. Ammonites are associated with sediments of Callovian and Oxfordian stages. Ammonites ha
Externí odkaz:
https://doaj.org/article/41fa48d8d48249069c1a78cea70ea1cb
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
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
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 2, Pp 73-76 (2018)
Concretions with fossils of the Ulyanovsk region are a new kind of jewelry and ornamental raw materials. Concretions are located in the middle part of the section of the Hauterivian sediments, which formed by dark gray dense clays. Concretions are de
Externí odkaz:
https://doaj.org/article/104954650199401e8ed8b6fe18a3b58c
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 1, Pp 76-80 (2018)
The large crystals of the collection and jewellery quality (including the crystals unique by size) have been found at the Iultin deposit (Eastern Chukotka). The jewellery ones are connected with veined morphological type of the ore bodies and located
Externí odkaz:
https://doaj.org/article/4001ff3dff4448f79cd86eabeb185567
Autor:
D. A. Petrochenkov
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 4, Pp 36-44 (2017)
A mineral composition and gemological descriptions of the jewelery varieties of the wood tin of deposits Dzhalindinskoe (Khabarovskiy krai), Tynooken (East Chukotka) and Dominion Krik (Canada) have been explored. According to the data of radio-graphi
Externí odkaz:
https://doaj.org/article/670aded0ae31430ab0ca7e40b9dffc57