Fred Herz seated on a car hood on a country road; Harzfahrt (Harz Mountains), Germany.

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Fred Herz seated on a car hood on a country road; Harzfahrt (Harz Mountains), Germany.

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heilbrunn, karl; heilbrunn friedrich (fritz); heilbrunn julius; osterode harz Portraits Family

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left to right:johanna heilbrunnl marcus heilbrunn, karl heilbrunn; osterade / harz Portraits Family

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heibrunn friedrich(fredericklfritz), osterode /harz Portraits Children

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heilbrunn fritz; heilbrunn julius; unidentified friend; obertal i. harz Portraits Family

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Ibergirhynchia contraria (F. A. Roemer, 1850), an Early Carboniferous seep-related rhynchonellide brachiopod from the Harz Mountains, Germany - A possible successor to Dzieduszyckia?

A new genus Ibergirhynchia, a member of the rhynchonellide superfamily Dimerelloidea, is described for the species Terebratula contraria Roemer, 1850, from Early Carboniferous deposits of the Harz Mountains, Germany. Ibergirhynchia contraria is from a monospecific brachiopod limestone that formed on top of the drowned Devonian Iberg Reef which persisted as a seamount during Famennian and Early Carboniferous times. Ibergirhynchia contraria is considered a cold seep-related brachiopod based on this locality. Such seep associations have been observed for Mesozoic representatives of the rhynchonellide superfamily Dimerelloidea. Ibergirhynchia is considered the first Paleozoic representative of the family Rhynchonellinidae. Ibergirhynchia resembles Dzieduszyckia externally and may be derived from this dimerelloid.

Die Säkularfeier in der Jacobson-Schule zu Seesen am Harz : zur Erinnerung an den Stifter Israel Jacobson

Enthält: Chronologisches Verzeichnis der Schüler der Jacobson-Schule von der Gründung der Anstalt 1801 bis 1868, zs.gest. von C. Gürbich

Bericht über die Jacobson-Schule, Realschule mit (Reform-)Realprogymnasium (nach dem Frankfurter Lehrplan) zu Seesen am Harz : für die Zeit von Ostern ... bis Ostern ..

Nebent.: Jahresberichte über die Jacobson-Schule zu Seesen am Harz

Professor Dr. Karl Otto Harz

Von Jos. Kraenzle

Na 50 Nachlass Arthur Schopenhauer - 'Schopenhauer-Archiv', 463 - Geognostische Übersicht über den Harz

u.a.: Plan für eine auf neun Tage berechnete Reise;

Pollen and diatom analysis on varved sediments in Lake Jues (Harz Mountains, Germany)

Studies combining sedimentological and biological evidence to reconstruct Holocene climate beyond the major changes, and especially seasonality, are rare in Europe, and are nearly completely absent in Germany. The present study tries to reconstruct changes of seasonality from evidence of annual algal successions within the framework of well-established pollen zonation and 14C-AMS dates from terrestrial plants. Laminated Holocene sediments in Lake Jues (10°20.70' E, 51°39.30' N, 241 m a.s.l.), located at the SW margin of the Harz Mountains, central Germany, were studied for sediment characteristics, pollen, diatoms and coccal green algae. An age model is based on 21 calibrated AMS radiocarbon dates from terrestrial plants. The sedimentary record covers the entire Holocene period. Trophic status and circulation/stagnation patterns of the lake were inferred from algal assemblages, the subannual structure of varves and the physico-chemical properties of the sediment. During the Holocene, mixing conditions alternated between di-, oligo- and meromictic depending on length and variability of spring and fall periods, and the stability of winter and summer weather. The trophic state was controlled by nutrient input, circulation patterns and the temperature-dependent rates of organic production and mineralization. Climate shifts, mainly in phase with those recorded from other European regions, are inferred from changing limnological conditions and terrestrial vegetation. Significant changes occurred at 11,600 cal. yr. BP (Preboreal warming), between 10,600 and 10,100 cal. yr. BP (Boreal cooling), and between 8,400 and 4,550 cal. yr. BP (warm and dry interval of the Atlantic). Since 4,550 cal. yr. BP the climate became gradually cooler, wetter and more oceanic. This trend was interrupted by warmer and dryer phases between 3,440 and 2,850 cal. yr. BP and, likely, between 2,500 and 2,250 cal. yr. BP.