Natural fractures are critical factors that should be considered in shale reservoir evaluation, storage condition analysis, horizontal well design, and fracturing stimulation, which also play a ...

In the report, JMG also stated that the Bukit Lagi Geosite was formed from Setul Formation limestone, dating back over 480 million years, and was rich in various types of fossils such as nautiloids, ...

1 Shaanxi Institute of Geological Survey, Xi'an, China 2 Shaanxi Center of Mineral Geological of Geological Survey, Xi'an, China The final, formatted version of the article will be published soon.

Zombies are real and everywhere we look. Not human zombies, of course, but animal ones: insects, arachnids, and countless other species. In her new book, Rise of the Zombie Bugs: The Surprising ...

Among brachiopods, the genus Lingula deserves special mention as perhaps the oldest unchanged animal genus on Earth. Fossils virtually identical to modern Lingula date back to the Ordovician period, ...

They precisely determined the absolute ages of the Katian–Hirnantian boundary (442.65+0.17/−0.23 Ma) and the Ordovician–Silurian boundary (442.33+0.34/−0.33 Ma), constraining the duration ...

Palaeoecology is the study of past ecosystems using palaeontological methods. Fossil data are used to reconstruct interactions between different species and between species and their environment ...

长期以来备受关注的显生宙五次生物大灭绝事件中，晚奥陶世生物大灭绝（ lome ）是最早发生的一次，其灭绝过程和机制一直是地球科学领域的研究热点。 传统观点认为， lome 可能持续了 1~2 百万年；随着技术发展，近年来一些学者 根据高精度定年结果提出， lome 可能只持续了几十万年。

Brachiopods are marine animals that might be mistaken for clams or oysters, but they represent an entirely different phylum that was once among the most abundant creatures in Earth’s oceans. These ...

These were at the end of the Ordovician (445 million years ago), the late Devonian (372 million years ago), the end-Permian (252 million years ago), the end-Triassic (201 million years ago) and ...