悠长假期

China unveils refined lunar map, empowering future moon exploration_我的网站

A |     A Chinese research team has completed an updated geologic map of the entire moon featuring a scale of 1:5 million, the Institute of Geology, Chinese Academy of Geological Sciences (IGCAGS), said on Thursday.    Representing a significant scientific iteration from the 2024 version, this map effectively rewrites the moon's geologic history based on the latest research findings. "The lunar geologic history has indeed been rewritten -- more precisely, refined and systematized," said Yang Zhiming, director of the IGCAGS.    Specifically, a primary achievement of this update is the recalibration of the moon's ancient geologic eras. The new map systematically updates the age boundaries of the moon's three ancient geologic periods, namely the Aitkenian, Nectarian and Imbrian periods, drawing on recent advances in international chronology.    Crucially, Chang'e-5 samples confirmed volcanic activity on the moon as recently as 2 billion years ago, extending its geologic lifespan by 1 billion years from the previously accepted 3 billion years. This independent dating data has now become a cornerstone of the global lunar geologic timescale.    Highlighting these spatial discoveries, the new global lunar geologic map is the first comprehensive canvas to bear exclusive findings from the Chang'e-6 mission. "The lunar samples and this map will provide a new starting point for scientific discussions regarding the lunar far side," said Jin Ming, an associate researcher at the IGCAGS.    The map details the age of young mare basalts on the lunar far side obtained from the Chang'e-6 samples, recording the region's volcanic history. Furthermore, it reveals that KREEP rocks, enriched with rare earth elements and other strategic resources, are far more continuous and abundant in the Oceanus Procellarum than previously estimated. This discovery, achieved by eliminating spectral noise, prompts a systemic reevaluation of the moon's early magma ocean crystallization and internal thermal evolution.    Beyond its scientific data, the 2.8-by-1.2-meter map introduces a proprietary cartographic standard. Identifying over 13,500 impact craters and 81 basins, it employs a unique color scheme rooted in geologic logic and traditional Chinese aesthetics, following a "lighter for younger, darker for older" principle.    Furthermore, this standard will also be applied to future geologic mapping of Mars and asteroids, ending reliance on foreign standard systems.    "This goes beyond showcasing technological soft power. This standard will be extended to future planetary geologic mapping, establishing an independent intellectual property framework for China's deep space exploration," Yang said.                    。     8 月 25 日消息，据韩媒 Chosun 报道，随着供应链压力持续加剧，美国政府正在向韩国政府施压，希望韩国企业在美国本土大规模投资存储芯片生产厂，稳定供应存储芯片产品。

B | 据报道，美国方面针对韩国政府此前公布的湖南（Honam）半导体计划，以非正式方式表达不满。美国政府认为，韩国正在积极投资国内半导体产业，但在美国的投资方面却表现消极。一名执政党人士表示：“美国要求韩国半导体企业在当地投资建设存储芯片工厂，随着半导体领域三大超级项目公布，美国对他们施加的压力进一步增大。”另一名相关人士则透露：“据我了解，美国并不是在担忧超级项目本身，而是对韩国企业迟迟没有公布美国半导体投资计划感到不满。”据悉，韩国通商产业部长金正官本月 16 日起奔赴美国，就韩国对美投资问题进行 4 天 3 夜谈判。韩方认为，美国方面提出的半导体投资要求，与两国去年达成的 3,500 亿美元（注：现汇率约合 2.36 万亿元人民币）投资协议并不属于同一事项。

Current article:http://kg4dgy.miaorediancuisuilianzouguang.cyou/np1/7dpsaq.html

Published on:17:47:24