These data reveal a sandwich-like structure for the HPE in the drilling core in which relatively high heat production sections are enclosed by relatively low heat production sections.

• 该结构可能代表着高压-超高压变质地体中的典型HPE结构，比大型花岗岩岩基的HPE结构更复杂，与传统的HPE指数衰减分布模式不吻合。