1996
DOI: 10.1080/01916122.1996.9989468
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Analysis of pollen contained in middens from the white mountains and volcanic tableland of Eastern California

Abstract: The pollen from five packrat middens from the White Mountains region of California were analyzed and compared to previously analyzed macrofossils from the same middens. The middens span the time from ca. 20,000 yr B. P. to the middle Holocene. While there are similarities in the pollen and macrofossil data, there are some subtle differences between the two types of data. The pollen data would support the macrofossil evidence that indicates the arrival of Pinus by the early Holocene. In spite of this general ag… Show more

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Cited by 5 publications
(5 citation statements)
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“…Nowadays various strobe compositions mentioned in the literature do not satisfy this criterion and the discovery of new strobe mixtures is still the result of a trial and error method. [132][133][134] For instance, a few binary compositions containing a perchlorate and hexamine are known to burn in an oscillatory manner. [132,134] Hexamine is an organic material and reminiscent of the experiments performed by Wasmann.…”
Section: Historical Reviewmentioning
confidence: 99%
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“…Nowadays various strobe compositions mentioned in the literature do not satisfy this criterion and the discovery of new strobe mixtures is still the result of a trial and error method. [132][133][134] For instance, a few binary compositions containing a perchlorate and hexamine are known to burn in an oscillatory manner. [132,134] Hexamine is an organic material and reminiscent of the experiments performed by Wasmann.…”
Section: Historical Reviewmentioning
confidence: 99%
“…[132][133][134] For instance, a few binary compositions containing a perchlorate and hexamine are known to burn in an oscillatory manner. [132,134] Hexamine is an organic material and reminiscent of the experiments performed by Wasmann. [19,129] In these mixtures, hexamine is supposed to act as fuel.…”
Section: Historical Reviewmentioning
confidence: 99%
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“…Er führte jedoch auch die Mçglichkeit an, dass konkurrierende Reaktionen für das Oszillationsverhalten verantwortlich sind: "eine Schwelreaktion der nitrathaltigen Monomere und eine schnelle Reaktion, die durch den physikalischen Prozess der Wärmestauung in der mikroporçsen Zone ausgelçst wird." Sowohl Krone als auch Wasmann [13,18,19,129] [132][133][134] Zum Beispiel sind einige binäre Gemische aus einem Perchlorat und Hexamin bekannt, die auf oszillierende Weise verbrennen. [132,134] Hexamin ist ein organisches Material, dessen Einsatz an die Experimente von Wasmann [19,129] [18][19][20] In den Gemischen C, I und J, die gute Stroboskopeffekte produzierten, breiten sich die Schichten an der Oberfläche des Pellets aus, werden dicker und rot, während Abbildung 1.…”
Section: Ein Historischer üBerblickunclassified
“…Einige von ihnen werden "Blitzorte" genannt, weil sie sich zu Blitzen entwi-Tabelle 5: Eine Auswahl klassischer Stroboskopgemische, die in der Literatur beschrieben wurden. [18,20,127,134,136] [3] oder in kalten Flammen [4] vorhanden sind. In beiden Fällen konkurrieren die beiden Reaktionswege der Erzeugung und des Verbrauchs des Zwischenprodukts miteinander, was die Oszillation ihrer Konzentration zur Folge hat.…”
Section: Ein Historischer üBerblickunclassified