2010年5月17日

5月の無料ファイルはGeoRef (File 89)です

2010年5月の無料ファイルはGeoRef (File 89)です。GeoRefはAmerican Geological Institute(AGI)の作成するデータベースで地質学と地球物理学に関する世界中の技術文献を収録しています。GeoRefの収録範囲は全世界にわたっており、索引している刊行物の約40%は米国内発行のものですが、残りは米国以外からのものです。国際団体の出版物はファイルの7%を占めています。このデータベースは3,500種以上の雑誌と同時に単行本と単行本の各章、会議発表論文、政府刊行物、学位論文、レポート、地図、および会議録を収録しています。

【サンプルレコード】
DIALOG(R)File 89: GeoRef
(c) 2010 American Geological Institute. All rights reserved.

03235503 GEOREF NO.: 10-045559
TITLE: Apparent tidal influence on magmatic <--タイトル(/TI)
activity at Oldoinyo Lengai Volcano, Tanzania,
as observed in Moderate resolution Imaging
Spectroradiometer (MODIS) data
AUTHOR(S): van Manen, Saskia M.; Kervyn, Matthieu; Blake,  <--著者(AU=)
Stephen; Ernst, Gerald G. J.
CORPORATE SOURCE: Open University,  <--著者所属機関(CS=)
 Department of Earth and Environmental
Sciences, Milton Keynes, United Kingdom
CORPORATE SOURCE: ; Ghent University, Belgium
PUBLISHER: Elsevier, Amsterdam, Netherlands <--出版社(PU=)
SOURCE: Journal of Volcanology and Geothermal Research <--雑誌名(JN=)
vol. 189 no.1-2; p. 151-157
DATE: 20100101
COUNTRY OF PUBLICATION: Netherlands <--出版国(CP=)
CODEN: JVGRDQ ISSN: 0377-0273 REFS.: 36 <--CODEN(CO=)、ISSN(SN=)
DOCUMENT TYPE: Serial <--資料の種類(DT=)
BIBLIOGRAPHIC LEVEL: Analytic <--書誌的レベル(DT=)
ILLUSTRATIONS: illus. incl. 2 tables <--図・地図(IL=)
LANGUAGE: English <--言語(LA=)
URL: S _http://www.sciencedirect.com/science/journal/03770273
ABSTRACT: This paper investigates the relative timing <--抄録(/AB)
 of solid Earth tides
and thermal anomalies associated with volcanic activity at Oldoinyo
Lengai (OL), Tanzania, from 2000 to 2008. The low viscosity of OL's
carbonatite magmas may make it particularly susceptible to tidal
stresses. Thermal data from the Moderate resolution Imaging
Spectroradiometer (MODIS) were filtered using the MODLEN algorithm and
Earth tides were modeled using TSoft. Application of the Schuster and
Chi-squared tests resulted in apparent correlations between times of
thermal anomalies and the phase of the semi-diurnal and biannual solid
Earth tides. However, for semi-diurnal and biannual tides limited
acquisition times of the MODIS data account for the apparent
correlations. Re-examining the data while accounting for the bias
introduced by the limited acquisition times, correlations are no longer
found. Onset times of eruptive events and times of thermal anomalies show
no statistically significant correlation with the fortnightly tide,
indicating this is not an influence on activity at OL. Tidal influences
on magmatic activity, if at all present, cannot be observed in coarse
resolution thermal data on semi-diurnal and fortnightly time scales.
Based on the available data, correlations on biannual timescales cannot
be ruled out.
COORDINATES: Latitude: S024500 ; S024500; Longitude: <--地理的座標(LS=等)
E0355600 ; E0355600
DESCRIPTORS: Africa; algorithms; carbonatites;  <--ディスクリプタ(/DE)
 Earth tides; East Africa;
igneous rocks; magmas; magmatism; MODIS; MODLEN algorithm; numerical
models; Oldoinyo Lengai; statistical analysis; Tanzania; temporal
distribution; thermal anomalies; tides; viscosity; volcanism; volcanoes
SECTION HEADINGS: 24 (Quaternary geology); <--セクション見出し(SH=)
GEOREF UPDATE: 201012

GeoRef, Copyright 2008, American Geological Institute. Reference includes
data from CAPCAS, Elsevier Scientific Publishers, Amsterdam,
Netherlands


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