The Cenozoic Urumieh-Dokhtar magmatic arc (UDMA) is considered as one of the major Cu-bearing regions in the world with high potential for the occurrence of porphyry Cu ± Mo ± Au systems. This study conducts a comprehensive synthesis of geological, geochronological, and geochemical data of intrusion rocks in some productive, sub-productive deposits and barren intrusions in the UDMA to find out discrimination criteria. U-Pb dating of zircon grains provides emplacement ages of 19.3±0.4 to 21.1±0.2 Ma for the Ghahan diorite, and tightly clustered ages of 14.5±0.2 to 14.9±0.1 Ma, 12.2 ± 0.1 Ma, and 27.3±0.4 to 29.2±0.3 Ma for Kahang monzonite, Meiduk diorite and Zaftak granodiorite porphyry copper deposit systems (PCDs), respectively. According to geochemical characteristics the Zaftak and Ghahan samples display the sub-productive signatures, whereas the Kahang and Meiduk samples are charachterized by the adakitic and productive signatures. Lowest average Sr/Y ratios are observed in Zaftak and Ghahan barren and sub-productive intrusive rocks (15.86, 13.46 and 20.19 for Eocene, Oligocene and Miocene, respectively), while the productive bodies of Kahang and Meiduk show 70.67 and 63.93 respectively. This study suggests two major mineralization episodes for UDMA porphyry copper deposits: 1) non-adakitic deposits generated during Oligocene to Early Miocene, and 2) Early Miocene to Late Miocene adakite-like deposits. The former mainly developed during pre-plate final closure Neo-Tethys Ocean, and latter reveals a post-collisional setting. In comparison with the barren and sub-productive intrusions, the productive PCDs suites, especially during Middle to Late Miocene times, are characterized by the enrichment of LREE. This transfer is the result of compressional stress along with tectonic shortening during Eocene-Oligocene (∼30–35 km crustal thickness) to mid-late Miocene (∼45–55 km thick or 12–15 kbar). In general, our data have nullified the previous mentioned progressive decrease of PCDs mineralization in UDMA. The ca. 19 to 21 Ma mineralization ages of central UDMA (Ghahan region) are obviously in contrary with a single stage of Early Miocene. Obviously, the formation of porphyry deposits with high grade-tonnage in UDMA is limited to the time interval after collision, with adakite evidence, and before the collision, other ore deposits such as Zaftak and Ghahan have been formed with sub-productive signature. Geochemical signatures of intrusions in UDMA during the Eocene, Oligocene, and Miocene periods suggest a progression and evolution, and the maturity of the magma arc towards the Miocene and, consequently, an increase in the probability of productive mineralization. It is also noteworthy that the Eocene magmatism seems to lack the necessary parameters for the formation of sub-productive and productive porphyry systems, the Oligocene magmatism is more susceptible and, naturally, towards the Miocene this potential has increased.

新生代Urumieh-Dokhtar岩浆弧（UDMA）被认为是世界上主要的含铜地区之一，具有斑岩型Cu±Mo±Au系统的高发潜力。这项研究对UDMA中某些生产，副生产矿床和贫瘠侵入岩中侵入岩的地质，地质和地球化学数据进行了综合综合，以找出判别标准。锆石的U-Pb测年提供了Ghahan闪长岩的镶嵌年龄19.3±0.4至21.1±0.2 Ma，紧密聚集的年龄为14.5±0.2至14.9±0.1 Ma，12.2±0.1 Ma和27.3±0.4至29.2± Kahang蒙脱石，Meiduk闪长岩和Zaftak花岗闪长斑岩斑岩铜矿床（PCDs）分别为0.3 Ma。根据地球化学特征，Zaftak和Ghahan样品显示出次生特征，而Kahang和Meiduk的样本则具有特征性和生产性特征。在Zaftak和Ghahan贫瘠及次生侵入岩中，平均Sr / Y比率最低（始新世，渐新世和中新世分别为15.86、13.46和20.19），而Kahang和Meiduk的生矿分别为70.67和63.93。这项研究提出了UDMA斑岩铜矿床的两个主要矿化事件：1）渐新世至早中新世期间产生的非重沉积矿床，以及2）早中新世至晚中新世的类似akakite矿床。前者主要发生在板前最终封闭的新特提斯海洋时期，而后者则显示出碰撞后的环境。与贫瘠和次生产入侵相比，生产PCD套件尤其是在中新世中期至晚期，其特点是富含LREE。这种转移是由于始新世-渐新世（约30-35 km地壳厚度）到中晚中新世（约45-55 km厚或12-15 kbar）的构造应力和压缩应力的结果。通常，我们的数据使UDMA中PCD矿化的先前提到的逐步减少无效。该ca。UDMA中部（加汗地区）的19至21 Ma矿化年龄明显与中新世的单个阶段相反。显然，在UDMA中高品位的斑岩矿床的形成仅限于碰撞后的时间间隔，有Adakite证据，并且在碰撞前，Zaftak和Ghahan等其他矿床已形成具有副生产特征。始新世，渐新世，中新世时期表明岩浆向中新世发展和演化，并且岩浆成熟，因此增加了生产成矿的可能性。同样值得注意的是，始新世的岩浆作用似乎缺乏形成次生和生产斑岩系统的必要参数，渐新世的岩浆作用更易发生，自然地，对于中新世来说，这种潜力增加了。