The heat production budget of a planet exerts a first order control on its thermal evolution, tectonics, and likelihood for habitability. However, our knowledge of heat producing element concentrations for silicate-metal bodies in the solar system—including Earth—is limited. Here we review the chronicle of heat producing elements (HPEs) in the solar system, from the interstellar medium, to their incorporation in the protoplanetary disk and accreting planetesimals, to later collisional or atmospheric-erosion modifications. We summarise the state of knowledge of the HPEs in terrestrial planets and meteorites, and current Earth models from emerging constraints, and assess the effect variations may have on the thermal and tectonic history of terrestrial planets.

中文翻译：

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陨石、地球和行星内部放射性发热元素的分布和变化

行星的产热预算对其热演化、构造和宜居性的可能性施加了一级控制。然而，我们对太阳系（包括地球）中硅酸盐金属体的发热元素浓度的了解是有限的。在这里，我们回顾了太阳系中产热元素 (HPE) 的编年史，从星际介质到它们在原行星盘中的结合和吸积的小行星，再到后来的碰撞或大气侵蚀修改。我们总结了类地行星和陨石中 HPE 的知识状态，以及来自新兴约束的当前地球模型，并评估变化可能对类地行星的热和构造历史产生的影响。