Barite from the Upper Idrijca River valley (W Slovenia)
نویسندگان
چکیده
منابع مشابه
Character and History of the Upper Ohio River Valley
Dismemberment of the preglacial Teays Valley system and development of the present Ohio River valley began in late Tertiary or early Pleistocene. By Illinoian time the present Ohio River was largely established in its present course, except for its headwaters above mile 114, which still flowed northward. The Illinoian glacial advance into northwestern Pennsylvania caused diversion of this porti...
متن کاملThe Age, Function, and Distribution of Keyhole Structures in the Upper Susquehanna River Valley
This paper provides a summary of current data regarding the age, geographical distribution, and function of keyhole structures in the upper Susquehanna River Valley of north-central Pennsylvania and south-central New York. Keyhole structures have been identified at 11 sites in the West and North Branches of the Susquehanna River Valley. The feature type likely originated in the West Branch Vall...
متن کاملFish Use of Intermittent Watercourses Draining Agricultural Lands in the Upper Willamette River Valley, Oregon
—Historically, the upper Willamette River valley in western Oregon was characterized by seasonal floods and large expansions of its stream network. During the past century, human activities have altered or eliminated many intermittent stream and floodplain habitats in the valley. As a result, the remaining intermittent streams and ditches, referred to as watercourses, may still provide habitat ...
متن کاملDevelopment of a Tree-Ring Chronology from Eastern Red Cedar (Juniperus virginia, L.) for the Upper Mississippi River Valley
Dendrochronology is the science that uses tree-rings dated to their exact year of formation to analyze temporal and spatial patterns of processes in the physical and cultural sciences. There currently is no published record for tree-ring studies using Eastern Red Cedar in the Upper Mississippi River Valley in Wisconsin. Therefore, this study develops a chronology from treerings using Eastern Re...
متن کاملPreceramic occupations in the orinoco river valley.
Two sites in the Orinoco Valley containing preceramic from excavated contexts are described. Radiocarbon dating and stylistic comparisons indicate that the northern tropical lowlands were inhabited at the onset of the Holocene, suggesting a time depth of 9000 years before the present for tropical forest-savanna adaptations in northern South America.
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ژورنال
عنوان ژورنال: Geologija
سال: 2002
ISSN: 0016-7789,1854-620X
DOI: 10.5474/geologija.2002.016