Results 131 to 140 of about 58,669 (239)

Neogene plant macrofossils from West Antarctica reveal persistence of Nothofagaceae forests into the early Miocene. [PDF]

open access: yesCommun Earth Environ
Bastias-Silva J   +14 more
europepmc   +2 more sources

Earthtime Lesson Plan for U/Pb Dating (grade 8-12) [PDF]

open access: yes
The Earthtime Lesson Plan is a complete description of a radiometric dating module taught to high school students at MIT. U/Pd dating and it's uses, teacher background, materials needed, time frame and National Science Standards are all provided as well ...

core  

Carbon and nitrogen isotope characterization of imported coals in South Korea

open access: yesFrontiers in Environmental Science, 2023
Eui-Kuk Jeong   +8 more
doaj   +1 more source

Trace elements in the silicate minerals of the Borodino Meteorite (Н5)

open access: yesЗаписки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in olivine, low-Са pyroxene and mesostasis from porphyritic and barred chondrules, as well as the pyroxene-olivine aggregate and matrix of equilibrated ordinary Borodino chondrite (Н5) is discussed. No
Kristina G. Sukhanova
doaj  

Extraordinarily long duration of Eocene geomagnetic polarity reversals. [PDF]

open access: yesCommun Earth Environ
Yamamoto Y   +3 more
europepmc   +1 more source

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