Permian-Triassic granites and associated tin deposits are widespread in the Eastern and Western belts of Peninsular Malaysia. The ages and key controlling factors of tin mineralization, however, are poorly constrained. Cassiterite separates from the Sintok and Rahman tin deposits in the Western belt, and Bandi, Setahum, Lembing, and Cherul tin deposits in the Eastern belt have U-Pb ages of 218.9 ± 3.4 and 226.8 ± 7.6 Ma, and 213.1 ± 3.9, 270.6 ± 4.6, 282.7 ± 4.6, and 281.3 ± 3.5 Ma, respectively. These ages directly constrain the tin mineralization in Peninsular Malaysia to two separate periods: 290 to 270 Ma and 230 to 210 Ma. Zircon crystals from tin-bearing granites in the Cherul and Sintok deposits have U-Pb ages of 276.0 ± 1.9 and 221.9 ± 0.6 Ma, respectively, consistent with the cassiterite U-Pb ages within uncertainties. Zircon crystals from barren granites of the Kuantan pluton in the Eastern belt have a U-Pb age of 260.5 ± 0.7 Ma, which is between the two tin mineralization periods. Zircon from these barren granites have ε_Hf(t) values from −5.4 to 3.6, two-stage Hf model ages (T_DM2) from 1.4 to 1.0 Ga, and Ce⁴⁺/Ce³⁺ ratios from 40 to 120. By comparison, zircon crystals from the tin-bearing granites have low ε_Hf(t) values (−9.7 to −3.2) and Ce⁴⁺/Ce³₊ ratios (4–67) and high T_DM2 (1.8–1.4 Ga). Zircon ages, Hf isotopes, and trace elements indicate that the tin-bearing granitic magmas in Peninsular Malaysia had relatively low oxygen fugacity and were derived from reworking of Paleo- to Mesoproterozoic sedimentary rock-dominated crust in response to the Paleo-Tethyan subduction and continental collision. This study confirms that the nature of magma sources and redox states of magmas were key in the formation of the tin-rich granites and associated tin deposits and that the granite-related tin mineralization in Peninsular Malaysia was closely related to the evolution of the eastern Paleo-Tethys.

中文翻译：

---

马来西亚半岛东南亚地区与花岗岩相关的锡成矿事件和关键控制因素：锡石U-Pb定年和锆石地球化学的新见解

二叠纪-三叠纪花岗岩和相关的锡矿床广泛分布在马来西亚半岛的东部和西部地带。然而，锡矿化的年龄和关键控制因素受到的制约很小。锡石与西部带的Sintok和Rahman锡矿分离，东部带的Bandi，Setahum，Lembing和Cherul锡矿的U-Pb年龄为218.9±3.4和226.8±7.6 Ma，以及213.1±3.9、270.6分别为±4.6、282.7±4.6和281.3±3.5 Ma。这些年龄直接将马来西亚半岛的锡矿化限制在两个独立的时期：290至270 Ma和230至210 Ma。Cherul和Sintok矿床中含锡花岗岩中的锆石晶体的U-Pb年龄分别为276.0±1.9和221.9±0.6 Ma，与不确定性范围内的锡石U-Pb年龄一致。东部带关丹岩体贫瘠花岗岩中的锆石晶体的U-Pb年龄为260.5±0.7 Ma，介于两个锡成矿期之间。这些贫瘠花岗岩中的锆石具有ε_Hf（t）值从-5.4到3.6，两阶段Hf模型年龄（T _DM2）从1.4到1.0 Ga，Ce ⁴⁺ / Ce ³⁺比从40到120。相比之下，锆石晶体从锡轴承花岗岩具有较低的_εHf（t）值（-9.7至-3.2）和Ce ⁴⁺ / Ce ³ ₊比率（4-67）和较高的T _DM2（1.8–1.4 Ga）。锆石年龄，Hf同位素和微量元素表明，马来西亚半岛的含锡花岗岩岩浆的氧逸度相对较低，并且是由于对古特提斯俯冲作用和陆相俯冲作用而改造成古至中元古代沉积岩为主的地壳碰撞。这项研究证实了岩浆源的性质和岩浆的氧化还原状态是​​形成富锡花岗岩和相关锡矿的关键，并且马来西亚半岛与花岗岩相关的锡矿化与东部古东部的演化密切相关。 -特提斯