We have combined new titanite, zircon, and apatite fission-track and apatite [U–Th–(Sm)]/He analyses with previously published U–Pb, Rb–Sr, and ⁴⁰Ar/³⁹Ar thermochronological data to reconstruct the Cenozoic thermal evolution of the Central Rhodope Metamorphic Complex (CRMC), exposed mainly in southern Bulgaria and to a lesser extent in northern Greece. Results reveal two phases of cooling. During the first phase, between ~ 37 and ~ 33 Ma, the CRMC experienced rapid cooling from partial melting at > 650 °C to ca 60 °C. Multiple generations of low-angle ductile-to-brittle fault zones accommodated the exhumation of the migmatitic core together with parts of its high-grade periphery. Oligocene volcanism and associated local elevation of the geothermal gradient is responsible for the resetting of some fission-track ages in the CRMC. The second cooling phase to temperatures of about 40 °C, between 24 and 13 Ma, is related to exhumation along high-angle normal faults in the southern part of the CRMC.

我们将新的钛铁矿，锆石和磷灰石裂变径迹和磷灰石[U–Th–（Sm）] / He分析与先前发表的U–Pb，Rb–Sr和⁴⁰ Ar / ^39相结合Ar热年代学资料可用来重建中央杜鹃花变质复合体（CRMC）的新生代热演化，该过程主要在保加利亚南部暴露，而在希腊北部则较少。结果显示出冷却的两个阶段。在第一阶段，大约37至33 Ma之间，CRMC经历了从> 650°C的部分熔化到60°C的快速冷却。多代低角度的韧性至脆性断裂带容纳了大型岩心及其高品位外围的一部分。渐新世的火山作用和相关的地热梯度局部升高是造成CRMC中某些裂变径迹年龄的重置的原因。在24至13 Ma之间的第二个冷却阶段，温度大约为40°C，与沿CRMC南部高角度正断层的发掘有关。