Sediment-hosted gold deposits in central Yukon have most of the diagnostic characteristics of Carlin-type gold deposits in Nevada. This study combines organic matter geothermometry with fluid inclusion microthermometry, clumped isotope data (Δ₄₇) for late ore-stage hydrothermal calcite, and apatite fission-track analyses to constrain the thermal evolution of Carlin-type gold zones in central Yukon. The Tmax parameter derived from pyrolysis analyses indicates that organic matter is overmature and records regional temperatures of > 150 °C. Calcite and fluorite associated with the waning stage of mineralization at ca. 74 Ma have mean fluid inclusion homogenization temperatures of 123–173 °C, with an average salinity of 4.8 wt.% NaCl equiv. These temperatures overlap values of 91–162 °C determined from calcite clumped isotope measurements and are similar to data from Carlin-type deposits in Nevada. Fluid mixing is suggested by a variation of the isotopic composition of the fluid in equilibrium with calcite, with the higher temperature end-member having higher δ¹⁸O_H2O values. In thermal models based on Tmax, fluid inclusion microthermometry, clumped isotope measurements, and apatite fission-track data, a higher temperature event at approximately 220 °C is consistent with pyrobitumen reflectance measurements. This event is either related to maximum tectonic burial prior to mineralization or to the flow of acidic hydrothermal fluids early in the main ore-stage. Each analytical technique used in this study is independent of the others and records part of the thermal and chemical evolution of the Yukon Carlin-type gold deposits and their host rocks.

育空地区中部的沉积金矿床具有内华达州卡林型金矿床的大部分诊断特征。本研究将有机物地温测量与流体包裹体显微测温、聚集同位素数据（Δ ₄₇) 晚期热液方解石和磷灰石裂变径迹分析，以限制育空地区中部卡林型金矿带的热演化。从热解分析得出的 Tmax 参数表明有机物已经过熟，记录的区域温度 > 150 °C。方解石和萤石与矿化的减弱阶段有关。74 Ma 的平均流体包裹体均匀化温度为 123–173 °C，平均盐度为 4.8 wt.% NaCl 当量。这些温度与方解石结块同位素测量确定的 91–162 °C 值重叠，类似于内华达州卡林型矿床的数据。与方解石平衡的流体的同位素组成的变化表明流体混合，温度较高的端元具有较高的 δ ¹⁸O _H2O值。在基于 Tmax、流体包裹体显微测温、团块同位素测量和磷灰石裂变径迹数据的热模型中，大约 220 °C 的较高温度事件与焦沥青反射率测量结果一致。该事件要么与成矿前的最大构造埋藏有关，要么与主要成矿阶段早期的酸性热液流动有关。本研究中使用的每项分析技术都独立于其他技术，并记录了育空卡林型金矿床及其围岩的部分热学和化学演化。