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The Lusatian Lake District and its surrounding area Section of the chain of lakes. The Lusatian Lake District [1] [2] [3] (German: Lausitzer Seenland, Lower Sorbian: Łužyska jazorina, Upper Sorbian: Łužiska jězorina) is a chain of artificial lakes under construction in Germany across the north-eastern part of Saxony and the southern part of Brandenburg.
Chain Lakes is located in an area of rugged cirques and sharp ridges where mining has been occurring since 1896. The mine has been called Dutch Miller mine where prospecting has been on sulfide minerals and high grade copper deposits found in quartz - tourmaline shoots in the granodiorite rock.
A study of 73 alpine lakes in the Eastern Alps determined that 85% of the lakes had low alkalinity values (< 200 μeq L −1) with only two lakes having an alkalinity above 500 μeq L −1. [51] This study also determined pH and found a range from 7.93–4.80 with 21% of the lakes having a pH below 6.00. [ 51 ]
Marl lakes have frequently been dredged or mined for marl, often used for manufacturing Portland cement. [18] However, they are regarded as ecologically important, [39] and are vulnerable to damage by silting, nutrient pollution, drainage, and invasive species. In Britain, only the marl lakes of the more remote parts of northern Scotland are ...
The Manitowish Chain O Lakes is a chain of lakes consisting of 10 lakes that includes: Rest Lake (809 acres), Stone Lake (139 acres), Fawn Lake (74 acres), Clear Lake (555 acres), Spider Lake (272 acres), Island Lake (1023 acres), Manitowish Lake (496 acres), Little Star Lake (245 acres), Wild Rice Lake (379 acres), and Alder Lake (274 acres).
The soft stone is easily carved and is not degraded by heating. The slick surface of soapstone allows the finished object to be easily removed. Welders and fabricators use soapstone as a marker due to its resistance to heat; it remains visible when heat is applied. It has also been used for many years by seamstresses, carpenters, and other ...
Asterism on the surface of a blue star sapphire. A purple-pink star sapphire displaying asterism in a platinum ring.. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped concentration of light reflected or refracted from a gemstone.
Malachite is a copper carbonate hydroxide mineral, with the formula Cu 2 CO 3 (OH) 2.This opaque, green-banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and deep, underground spaces, where the water table and hydrothermal fluids provide the means for chemical precipitation.