terrestrial soil मीनिंग इन हिंदी

The BIT index is based upon the premise that GDGT-4 ( also known as crenarchaeol ) is derived from marine-dwelling Thaumarchaeota and branched GDGTs are derived from terrestrial soil bacteria.
The theory is supported in part by the discovery of high levels of iridium in sediments marking the end of the Mesozoic era _ levels more consistent with the iridium content of asteroids than with terrestrial soil.
Terrestrial soils of this nature need to adjust from fresh to saline interstitial water by a change in the chemistry and the structure of the soil, accompanied with fresh deposition of estuarine sediment, before salt marsh vegetation can establish.