FLOWERING TUBE AGATE ROUGH FROM Ancient Lake Lahonton. Over 6LBS

Description

6 lbs. 14 oz. Red and White Flowering Tb Agate from Nevada's Ancient  Lake Lahonton.  This Beutaful Stone is 7" x 9"x 4" wide.
Between about 25,000 and 11,000 years ago, Nevada's late ice age climate was much cooler and wetter than today. While glaciers only occupied mountain ranges, much of the vegetation was similar to that of today, although it was found in different settings. This interval represents the end of the Wisconsin Stage of North America's Pleistocene geologic period, and it is well represented by the Nevada's paleontology and geology.
Instead of a literal ice age, in which land is covered by continental glaciers, the Great Basin's Ice Age was marked by increased precipitation and reduced evaporation, known as a "pluvial" climate. This increased stream flow and encouraged lake formation. The Great Basin received its name because rivers and streams that originate in the mountains drain into the basin and end in lakes or sinks within valley bottoms throughout the region. During the Ice Age, the Great Basin region supported two major late Pleistocene pluvial lakes: Lake Lahontan and Lake Bonneville. Lake Bonneville lay almost exclusively in western Utah, and only a small area in eastern Nevada, while Lake Lahontan was mainly restricted to western Nevada.
Lake Lahontan reached a maximum depth of over 500 feet and covered over 8,610 square miles, with vast stretches of open water separated by mountain ranges. Open water encouraged wave formation and strong currents within the lake. Surrounding mountain ranges were carved by waves that formed caves and multiple terraces. Currents moved stones and boulders, forming massive spits and dikes. Four major river systems—The Walker, Carson, Truckee, and Humboldt, as well as numerous smaller drainages—fed Lake Lahontan.