|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ПсковГУ |
||
The Dukat Gold‒Silver Deposit: Structural Control of Veinsстатья
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 15 апреля 2026 г.
- Авторы: Maltsev G.G., Yakubchuk A.S.
- Журнал: Moscow University Geology Bulletin
- Том: 81
- Номер: 1
- Год издания: 2026
- Издательство: Allerton Press Inc.
- Местоположение издательства: United States
- Первая страница: 105
- Последняя страница: 111
- DOI: 10.3103/S0145875226700110
- Аннотация: Four generations of veins at the Dukat gold‒silver deposit are controlled by extensional flower structure, which also controls the entire Balygychan‒Sugoi volcanic graben in the rear of the Okhotsk‒Chukotka volcanic belt. The Order I faults, controlling the graben, occur some 10–15 km from its mapped Cretaceousvolcanic rocks, which are well expressed on gravity map. The deposit area has numerous ENE-trending Order II faults, forming a parquetry-like structure every 200 to 600 m. Only Zone I orebody occurs along such faults. The other 120 ore veins and zones fill in the Order III faults of the extensional flower structure.Quartz veins of first generation are not widespread. Veins of second, third and fourth generations reveal zonal distribution within the deposit. Quartz‒adularia‒chlorite veins of the second generation occur almost exclusivelyto the southeast of Zone I, whereas quartz‒rhodonite veins of third generation are both to the southeast and northwest from Zone I. Quartz‒sulfide veins of fourth generation are known only to the northwest of Zone I. Previous works showed that veins of third and fourth generations formed after a 20-million-year long hiatus after the veins of first and second generations. This time gap corresponds to structural reorganization and unconformity within the Balygychan‒Sugoi volcanic graben that reflects the evolution of the hostingextensional duplex.
- Добавил в систему: Якубчук Александр Сергеевич