Welcome to the NYC stock exchnge earth cache!
To get credit for this cache, you will need to go to the posted cordinanrs, learn and understand the full lesson, answer the the 3 questions at the bottom of the description, and post picture proof you were there. At the posted cordinants is the NYC Stock Extchange building once there, observe the building and answer the questions. Please no spoiler pictures of the final answers. Have Fun!
The New York Stock Exchange Building (also NYSE Building) ia a very cool and archelodgical building that i would recommend reasearching more. It was to small at many points and had to be expanded a lot. Thus building is where people can exchange or sell their stock to others, and the building is not allways open to visitors, but is a geolodgical marvel.
The geolodgical lesson today is about what the exchange building is made of. The building is mostly constructed of White geogia Marble which can be seen on the outside of the building.
White Georgia marble, also known as Cherokee White Marble, was formed most likely formed over 600 million years ago during the Precambrian period and was formed most likely at the bottom of the atlantic ocean. At that time, North Georgia was completely submerged under a mini sea filled with sea life such as star fish and sea shells.. As these organisms died, their calcium carbonate-rich shells and skeletons dittereated on the sea floor, forming a thick layer of rock marble sediment. Over millions of years, these sediment like rocks were buried under additional layers, gradually compressing and cementing together to form limestone and marble which today are in the NYC stock exchange building and columns.
The transformation from limestone to marble occurred through a process called metamorphism. This involves high and intense heat and pressure, typically due to tectonic and volcanic activity, which is the same thing that causes volcanos to erupt, which also causes the limestone to recrystallize and turn into marble. During this process, the calcite grains within the limestone and makes it grow larger and interlock, creating the characteristic crystalline structure of marble. The presence of impurities, such as iron or graphite, within the original limestone which makes the veining patterns seen in White Georgia marble. These veins add to its aesthetic appeal and make the columns unique.
As the Appalachian Mountains formed during the tectonic collisions in the Paleozoic era, the limestone deposits in North Georgia which is why it is called white georga marble, were subjected to further pressure and heat, enhancing the metamorphic process. The result is the high-quality, durable marble known today for its fine grain and elegant appearance. This marble was eventually exposed through erosion and uplift, making it accessible for quarrying. The combination of its geological history and beauty has made White Georgia marble is a prized material for significant architectural projects across the United States and stands as a very cool geolodgical rock.
If you would like to learn more about his topic, you can go to:
https://soar.kennesaw.edu/bitstream/handle/11360/2474/sc-g-006-0400001.pdf?sequence=1" target="_blank">The History of Georgia Marble</a>
Now here are the Earth cache questions you must answer to get credit for the cache.
a) What colors and textures do you you observe in the marble?
b) What geological features can you observe in the marble of the colums? Describe any patterns or textures you might see.
c) Post picture proof you were there.