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This contrasts with the typical 40,000–50,000 sunspots seen in modern times.
The Maunder Minimum occurred between 16 when very few sunspots were observed.
San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, STOCK, Greg M., National Park Service, Yosemite National Park, El Portal, CA 95318, STONE, John O., Department of Earth and Space Sciences and Quaternary Research Center, University of Washington, Box 351310, 070 Johnson Hall, Seattle, WA 98195 and ZIMMERMAN, Susan H., Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94550, [email protected] National Park is an excellent natural laboratory for studying rock falls and rock avalanches, because in many areas these are the main processes modifying the near vertical slopes of this glaciated landscape.
Mass wasting represents a significant hazard in the region.
Landform-evolution studies look at the build-up of long-lived radioisotopes produced on the surface of the earth (i.e., Be has also been measured to determine erosion rates and fluvial transport mechanisms (Dominik et al., 1987) and to determine direct contribution of rainfall to terrestrial waters (Cooper et al., 1991). de Vries, Environmental Isotopes in the Hydrological Cycle: Principles and Applications, vol. Hovius, Quantification of Continental Erosion Processes.
Solar surface magnetic activity and the strength of solar geomagnetic dipoles affect the galactic cosmic ray influx that produces atmospheric (return to top) Australian National University, Research School of Physical Sciences and Engineering, Nuclear Physics, Accelerated Mass Spectrometry, Exposure Dating and Erosion Studies Dartmouth University, Dept. 1, Centre for Isotope Research, Groningen, Netherlands.
This article collects evidences that place a lower limit on the age of the Universe beyond the 6,000 to 10,000 years asserted by most Young Earth creationists (YECs) and the literalist Ussher chronology.FORD, Kiersti Rae, Department of Earth and Environmental Sciences, California State University - Fresno, 2345 E.San Ramon Ave, MS/MH24, Fresno, CA 93720, PLUHAR, Christopher J., Earth & Environmental Sciences Dept, California State University, Fresno, 2576 E.This is an unfalsifiable hypothesis, and is unscientific.The Maunder Minimum, also known as the "prolonged sunspot minimum", is the name used for the period starting in about 1645 and continuing to about 1715 when sunspots became exceedingly rare, as noted by solar observers of the time. Eddy Spörer noted that, during a 28-year period (1672–1699) within the Maunder Minimum, observations revealed fewer than 50 sunspots.