Sentences with phrase «studying ancient soil»

The researchers were studying ancient soil composition in an exposed Siberian riverbank in 1995 when they discovered the first of 70 fossilized Ice Age squirrel burrows, some of which stored up to 800,000 seeds and fruits.

Not exact matches

With the exception of the fertile river valleys along which agriculture began, civilizations generally lasted 800 to 2,000 years, and geoarchaeological studies have now shown a connection between soil erosion and the decline of many ancient cultures.

Genetic studies suggest that liverworts — humble, stumpy plants related to mosses, which now commonly grow on damp soils — are the most ancient group of plants alive today.

Various salt compounds found deep in the soil of New Mexico's desert may be the key to understanding how crops were cultivated in ancient Chaco Canyon — despite the backdrop of what seems an otherwise arid and desolate landscape, according to a University of Cincinnati study.

By Barry Brown Canadian researchers studying the ArcticÂ's ancient permafrost have discovered 700,000 - year - old ice wedges buried in the soil that have survived earlier periods of global warming, adding complexity to predictions about the impact of contemporary climate change.