نتایج جستجو برای: fossil

تعداد نتایج: 25461  

Journal: :Proceedings of the Yorkshire Geological and Polytechnic Society 1882

Journal: :The Canadian Entomologist 1908

Journal: :Nature 1883

Journal: :Crossing Borders: A Multidisciplinary Journal of Undergraduate Scholarship 2019

2015
Gilles Didier Marine Fau Michel Laurin

Diversification rates are estimated from phylogenies, typically without fossils, except in paleontological studies. By nature, rate estimations depend heavily on the time data provided in phylogenies, which are divergence times and (when used) fossil ages. Among these temporal data, fossil ages are by far the most precisely known (divergence times are inferences calibrated with fossils). We pro...

2001
M. Steinberg

Mitigating the global warming greenhouse effect while maintaining a fossil fuel economy, requires improving efficiency of utilization of fossil fuels, use of high hydrogen content fossil fuels, decarbonization of fossil fuels, and sequestering of carbon and CO2 applied to all the sectors of the economy, electric power generation, transportation, and industrial, and domestic power and heat gener...

2017
Ee Sann Tan Muhammad Anwar R. Adnan M. A. Idris

Fossil fuel has been the primary source of fuel ever since it was discovered and comes in the form of coal, petroleum and natural gas. Discovery of fossil fuel dates back to prehistoric time where caveman discovered how to burn coal for heat source. Coal which is also part of fossil fuel and is developed over millions of years can even extend up to 650 million years. With excessive usage of fos...

Journal: :Proceedings of the United States National Museum 1941

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