Results 131 to 140 of about 4,830,166 (199)

High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event [PDF]

open access: yes
Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Underwood, Charlie J.   +2 more
core  

Drop By Drop: the life cycle of the Lower Colorado River

open access: yes, 1999
24 pgs.Where does all the water in the Texas Colorado River come from and where does it go? And will there always be enough? These are questions on most people's minds when times get dry.
Lower Colorado River Authority
core  

Time scales and gaps, Haar fluctuations and multifractal geochronologies. [PDF]

open access: yesCommun Earth Environ
Lovejoy S   +4 more
europepmc   +1 more source

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