Thermal-tectonic history of the İspir-Ulutaş porphyry Cu-Mo deposit, Eastern Pontides: Implications for regional tectonics and exploration of porphyry systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F25%3A00618473" target="_blank" >RIV/67985891:_____/25:00618473 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.oregeorev.2025.106532" target="_blank" >https://doi.org/10.1016/j.oregeorev.2025.106532</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.oregeorev.2025.106532" target="_blank" >10.1016/j.oregeorev.2025.106532</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal-tectonic history of the İspir-Ulutaş porphyry Cu-Mo deposit, Eastern Pontides: Implications for regional tectonics and exploration of porphyry systems

Popis výsledku v původním jazyce

This study employs multiple low-temperature thermochronology techniques—Apatite Fission Track (AFT), Apatite (U-Th)/He (AHe), and Zircon (U-Th)/He (ZHe)—to reveal the cooling, exhumation, and preservation history of the ˙Ispir-Ulutas¸ porphyry Cu-Mo deposit, the oldest known porphyry deposit in the Eastern Pontides (~131 Ma), and to investigate the relative scarcity of the porphyry systems in the Eastern Pontides. The inverse thermal history model reveals a complex multi-stage cooling/exhumation history of the ˙Ispir-Ulutas¸ deposit. The ZHe data and thermal model indicate that the deposit was emplaced at a paleodepth of over 5 km at ~ 131 Ma. The deposit experienced two major exhumation stages. The first, occurring during the Middle Eocene (~43–38 Ma), was triggered by anomalous regional compressional forces likely due to the subduction of a mid-ocean ridge along the Bitlis-Zagros suture zone. During this phase, the porphyry system was exhumed to near-surface levels, but only its uppermost parts were eroded. Shortly after, post-collisional volcanic and sedimentary sequences buried the deposit, temporarily protecting it from further erosion. The second major exhu-nmation phase, recorded by AHe data, began around 18 Ma and continues to the present, resulting innapproximately 2.5 km of erosion. This phase aligns with the timing of the Arabia-Eurasia collision, which caused gradual uplift and exhumation across the region.nIn summary, the deep emplacement of the Ispir-Ulutas¸ deposit (>5 km), combined with the post-nmineralization burial by Eocene sequences, extended slow exhumation, and drier/continental climatic conditions, played key roles in the preservation of the porphyry system. Lastly, the study proposes that areas in the southern Eastern Pontides, particularly those covered by Eocene sequences, may offer promising exploration targets for new porphyry deposits.

Název v anglickém jazyce

Thermal-tectonic history of the İspir-Ulutaş porphyry Cu-Mo deposit, Eastern Pontides: Implications for regional tectonics and exploration of porphyry systems

Popis výsledku anglicky

This study employs multiple low-temperature thermochronology techniques—Apatite Fission Track (AFT), Apatite (U-Th)/He (AHe), and Zircon (U-Th)/He (ZHe)—to reveal the cooling, exhumation, and preservation history of the ˙Ispir-Ulutas¸ porphyry Cu-Mo deposit, the oldest known porphyry deposit in the Eastern Pontides (~131 Ma), and to investigate the relative scarcity of the porphyry systems in the Eastern Pontides. The inverse thermal history model reveals a complex multi-stage cooling/exhumation history of the ˙Ispir-Ulutas¸ deposit. The ZHe data and thermal model indicate that the deposit was emplaced at a paleodepth of over 5 km at ~ 131 Ma. The deposit experienced two major exhumation stages. The first, occurring during the Middle Eocene (~43–38 Ma), was triggered by anomalous regional compressional forces likely due to the subduction of a mid-ocean ridge along the Bitlis-Zagros suture zone. During this phase, the porphyry system was exhumed to near-surface levels, but only its uppermost parts were eroded. Shortly after, post-collisional volcanic and sedimentary sequences buried the deposit, temporarily protecting it from further erosion. The second major exhu-nmation phase, recorded by AHe data, began around 18 Ma and continues to the present, resulting innapproximately 2.5 km of erosion. This phase aligns with the timing of the Arabia-Eurasia collision, which caused gradual uplift and exhumation across the region.nIn summary, the deep emplacement of the Ispir-Ulutas¸ deposit (>5 km), combined with the post-nmineralization burial by Eocene sequences, extended slow exhumation, and drier/continental climatic conditions, played key roles in the preservation of the porphyry system. Lastly, the study proposes that areas in the southern Eastern Pontides, particularly those covered by Eocene sequences, may offer promising exploration targets for new porphyry deposits.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Ore Geology Reviews

ISSN

0169-1368

e-ISSN

1872-7360

Svazek periodika

179

Číslo periodika v rámci svazku

APR

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

106532

Kód UT WoS článku

001446060000001

EID výsledku v databázi Scopus

2-s2.0-86000440385