תמונות של מכרה הנחושת בפאלון

Image from page 163 of "Elementary physical geography;" (1908) ידי Internet Archive Book Images

<b>Identifier</b>: elementaryphysic01redw <b>Title</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidelementaryphysic01redw">Elementary physical geography;</a> <b>Year</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookyear1908">1908</a> (<a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookdecade1900">1900s</a>) <b>Authors</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookauthorRedway__Jacques_Wardlaw__1849___from_old_catalog_">Redway, Jacques Wardlaw, 1849- [from old catalog]</a> <b>Subjects</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksubjectPhysical_geography">Physical geography</a> <b>Publisher</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookpublisherNew_York__C__Scribner_s_sons">New York, C. Scribner's sons</a> <b>Contributing Library</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookcontributorThe_Library_of_Congress">The Library of Congress</a> <b>Digitizing Sponsor</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/booksponsorThe_Library_of_Congress">The Library of Congress</a> <b>View Book Page</b>: <a href="https://archive.org/stream/elementaryphysic01redw/elementaryphysic01redw#page/n163/mode/1up" rel="nofollow">Book Viewer</a> <b>About This Book</b>: <a href="https://archive.org/details/elementaryphysic01redw" rel="nofollow">Catalog Entry</a> <b>View All Images</b>: <a href="https://www.flickr.com/photos/internetarchivebookimages/tags/bookidelementaryphysic01redw">All Images From Book</a> Click here to <a href="https://archive.org/stream/elementaryphysic01redw/elementaryphysic01redw#page/n163/mode/1up" rel="nofollow"><b>view book online</b></a> to see this illustration in context in a browseable online version of this book. <b>Text Appearing Before Image:</b> <i>no means so extensive as thatof surface waters, but it is, nevertheless, of great im-portance. Water has a great solvent power; hot water,especially if under pressure, will dissolve rock that is notaffected by cold water. When the solution cools, much ofthis matter is again set free. In the meantime, if the waterhas been forced to the surface, the substances dissolvedwill be carried along and there deposited. Sometimes the deposits are spread over the surface ofthe ground, forming sinter or tufa. If the latter happens 148 PHYSICAL GEOGRAPHY to cover loose rock waste or soil, a cavern or cave will re-sult if the material under it be removed. In other instances the hot mineral waters flow into deepfissures in the rocks. As the water cools the mineral mat-ter is deposited on the walls of the fissure until, finally,the latter is filled, thereby forming a mineral vein or lode.All through mountain regions, veins of banded or ribbonrock containing the ores of gold, silver, copper, lead, and</i> <b>Text Appearing After Image:</b> <i>BLUE GROTTO, ISLANT) OF CAPRI, ITALY other valuable metals have been deposited in such fissures.Thus underground waters are a. vehicle by which manyuseful metals are carried from the interior to the surfaceof the earth. Caverns.—Most caverns and caves are formed by under-ground waters. The water dissolves the rock and carriesit off, leaving a cavern. Clay, slate, granite, and sand- UNDERGROUND WATERS 149 stones are not readily dissolved;and in regions underlaid by suchrocks, caverns are rare. Lime-stones, on the contrary, are solu-ble, and in localities where theyprevail, caves and caverns arecommon. A joint or fault in therock is usually the beginning ofthe formation of a cavern such asis shown in the accompanyingillustration. Along this line thewater can readily collect. There-after the formation of the cavernis a question of time and thesolubility of the limestone. In the cavern district of Ken-tucky, Tennessee, and Virginiasmall pieces of sharp flint areplentifully distributed t</i> <b>Note About Images</b> <i>Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.</i>
מכרה הנחושת בפאלון (בשוודית: Falu Gruva) הוא מכרה בעיר פאלון שבשוודיה, שאינו פעיל כיום. פעילות הכרייה במכרה נמשכה כמִילֶנְיוּם, תאריך התחלת הכרייה אינו ידוע ומשערים שהפקת הנחושת הייתה כבר בתקופה הוויקינגית, כאשר המסמך העתיק ביותר שנמצא בו מוזכר המכרה... קרא עוד
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