First fission-track dating of zircons from Mesozoic complexes of the Crimea

The character of the volcanic activity in southwestern Crimea during the Late Albian

“…The time of track system closure based on zircons from Mount Kastel diorites was determined at 149 ± 10.9 Ma (Solov'ev and Rogov, 2010), probably corre sponding to the age of the last magmatic events in this area. The youngest Ar-Ar datings of Karadag volcanic rocks are of a similar age, 152-142 Ma (Meijers et al, 2010).…”

Stages of Carboniferous-Triassic magmatism in the Black Sea region based on isotope-geochronological study of detrital zircons from jurassic coarse clastic strata of the Mountainous Crimea

“…1 -мелководно-морские отложения (верхний мел -эоцен); 2 -отложения шельфа и континентального склона (нижний мел); 3 -отложения шельфа (келловей -берриас); 4 -вулканогенно-осадочные отложения, моласса, шельфовые отложения (средняя юра); 5 -таврическая и эскиординская серии (верхний триас -нижняя юра); 6 -троговые и шельфовые отложения (келловей -неоген); 7 -деформированные шельфовые осадки (келловей -эоцен). Магматические ареалы: 1 -тела габброидов, диабазов, габбро-диабазов, габбро-диоритов, микродиоритов и долеритов (включая Первомайский шток и Джидаирскую интрузию, для которых получен возраст 174 и 170 млн лет соответственно, U-Pb датировки по циркону, SHRIMP-II [Morozova et al, 2017]), распространенные в окрестностях села Трудолюбовка; 2 -массивы гранитоидов, слагающих горы Аюдаг и Кастель, возраст по регионально-геологическим данным -бат-байос (165-172 млн лет) [Spiridonov et al, 1990;Soloviev, Rogov, 2010;Fikolina et al, 2019; и мн. др.…”

The position and age of flysch deposits in the Crimean Mountains (Southern Ukraine).

“…The larg est in tru sion (3 x 4 km) of gab bro/bas alts is located near Hurzuf (Ayu-Dag, see Bilecki, 2006b;Yudin, 2009). There are also large Mid dle Ju ras sic in tru sions of gab bro/diabases and plagiogranites in this area (e.g., Kastel; Bilecki, 2006b;Solov'ev and Rogov, 2010).…”

“…; Panov et al, 2001). In the coastal zone be tween Hurzuf and Alushta, the TFF is in truded by Mid dle Ju ras sic vol ca nic bod ies: gab bro-diabases, andesites, bas alts, diorites and plagiogranites (Pivovarov and Derenyuk, 1984;Kruglov and Tsypko, 1988;Bilecki, 2006b;Yudin, 2009;Solov'ev and Rogov, 2010;Meijers et al, 2010). In the NW sec tor of the CM, the TFF is transgressively over lain by Lower Cre ta ceous, mainly Hauterivian de pos its (Figs.…”

“…Tak ing into ac count the in ter de pen dence of vol ca nism and sed i men ta tion of the TFF (see Kruglov and Tsypko, 1988), the stud ies of de tri tal zir cons from out crops lo cated near Simferopol and along the Black Sea coast be tween Yalta and Alushta as well as from the Kastel Mas sif (west of Alushta) sup plied impor tant in for ma tion (Solov'ev and Rogov, 2010). They pro vide the fol low ing dates (in Ma): 220.1 ±12 and 169.9 ±8.6 in the north, 193.6 ±13.1, 167.1 ±12.1 and 154.0 ±10.2 on the seashore, and 149.0 ±10.9 in the Kastel Mas sif, thus show ing that the age of de tri tal zir con cor re spond ing to the in ter val be tween the Late Tri as sic to Mid dle Ju ras sic and the Oxfor dian/Kimmeridgian (Late Ju ras sic) is sim i lar to the usu ally ac cepted age of the TFF, and sug gests syn chrony of vol ca nism (Late Tri assic-Mid dle/Late Ju ras sic) and flysch sed i men ta tion.…”