由西澳大利亚大学、拉筹伯大学、昆士兰大学及国际研究机构组成的团队，通过无人机摄影、卫星数据和地球物理技术的综合应用，在澳大利亚Nullarbor Plain地区发现了一个重要地质现象。1研究人员确认，地表长达20公里、深度仅数米的南北向浅沟实际上并非河流侵蚀而成，而是深埋洞穴系统向上坍塌的表现。1
Nullarbor Plain超过200,000平方公里，是世界上最大的石灰岩地区之一。1这项研究改变了科学家对全球岩溶地貌的认识。1岩溶地貌占地球无冰表面积的15%，为全球10%-25%的人口提供饮用水。1研究成果已发表在《Communications Earth & Environment》期刊上。1
该研究所采用的技术方法可应用于火星等其他星球上的隐藏洞穴定位，为外星地质研究提供了新的工具和思路。1
A research team has revealed that shallow surface grooves crisscrossing Australia's Nullarbor Plain are not the result of river erosion, but rather collapsed sections of deep underground cave systems.1 Using drone photography, satellite data, and geophysical techniques, the researchers identified this previously misunderstood landscape feature, fundamentally shifting scientific understanding of karst topography worldwide.1
The Nullarbor Plain spans over 200,000 square kilometers and ranks among the world's largest limestone regions.1 The most striking surface features are north-south trending grooves that extend up to 20 kilometers in length yet measure only several meters deep.1 Rather than forming through traditional water erosion processes, these formations represent the collapse of buried cave systems toward the surface, according to the findings published in Communications Earth & Environment.1
The discovery carries significant implications for both terrestrial and extraterrestrial geology. Karst landscapes account for approximately 15 percent of Earth's ice-free surface area and provide drinking water to between 10 and 25 percent of the global population.1 Beyond Earth applications, the detection methodology developed in this study offers a promising new approach for locating hidden cave systems on other planets, including Mars.1
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