High resolution speleothem records of Quaternary solar activity climate and variations

Conference · Wed Jan 01 00:00:00 EST 1992 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:5689860

Shopov, Y Y; Ford, D C; Morrison, J; Schwarcz, H P ^[1]; Georgiev, L N; Sanambria, M E ^[2]; Dermendjiev, V N; Buyukliev, G ^[3]

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1. McMaster Univ., Hamilton, Ontario (Canada). Geology Dept.
2. Sofia Univ. (Bulgaria). Faculty of Physics
3. Bulgarian Academy of Science (Bulgaria). Dept. of Astronomy and NAO

Calcite speleothems are precipitated in caves from infiltrating soil waters. Laser Luminescent Microzonal Analysis (LLMZA) of examples from different environments in Canada, USA and Bulgaria has been undertaken. Some of the resulting time series cover long intervals (e.g. 250,000 years) with a time resolution of 100 years; fast growing samples can be resolved to little as three days. From power spectral analysis, cycles of 1, 2, 11--12, 22, 95, 180, 300, 400, 600, 900, 1,200, 2,300, and 3,350 years and longer have been found. There is good correlation between the luminescent record and C-13 variations in a sample from the Black Hills, S.D., which also displays correlation with the O-18 and C-13 records of deep sea cores. There is correlation between the luminescent records of Bulgarian, US and Canadian speleothems and various indices of solar activity, and some correlation with Canadian tree ring records.

• OSTI ID: 5689860
• Report Number(s): CONF-921058-; CODEN: GAAPBC
• Journal Information: Geological Society of America, Abstracts with Programs; (United States), Vol. 24:7; Conference: 1992 annual meeting of the Geological Society of America (GSA), Cincinnati, OH (United States), 26-29 Oct 1992; ISSN 0016-7592
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
CALCITE
PRECIPITATION
QUATERNARY PERIOD
PALEOCLIMATOLOGY
SOLAR ACTIVITY
BULGARIA
CANADA
CARBON 13
CAVES
ISOTOPE RATIO
LUMINESCENCE
OXYGEN 18
SOUTH DAKOTA
USA
CARBON ISOTOPES
CARBONATE MINERALS
CAVITIES
CENOZOIC ERA
DEVELOPED COUNTRIES
DEVELOPING COUNTRIES
EASTERN EUROPE
EUROPE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
GEOLOGIC AGES
ISOTOPES
LIGHT NUCLEI
MINERALS
NORTH AMERICA
NUCLEI
OXYGEN ISOTOPES
PALEONTOLOGY
SEPARATION PROCESSES
STABLE ISOTOPES
580000* - Geosciences