carbon deposits

The [thing] that I’m concerned about for Greenland is the black carbon. And when black carbon deposits on ice — something that’s very dark in color on something that’s very white — that then speeds up the melting of the Greenland ice sheet.
— 

Jessica McCarty, an assistant professor of geography at Miami University in Ohio

Greenland Is Still Burning, But The Smoke May Be The Real Problem

“Badab-e Surt (Persian: باداب سورت‎) is a natural site in the Mazandaran Province of northern Iran, 95 km (59 mi.) south of the city of Sari and 7 km (4.3 mi.) west of Orost village. It comprises a range of stepped travertine terrace formations that have been created over thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside.” – Fereydoon Gharaei, 2015

pandoratelenor  asked:

romes water plumbing had lead in it. just. as reminder while aquaducts sounds nice. there is also the risk of lead poisoning from consuming the water. love norsesuggestions main blog feeling ready to fight about aquaducts

Most of the poisoning due to lead comes from our cooking vessels made of lead and lead is also used in cosmetics. The aqueducts are free of danger next to them.


(Roman tap water contained 100 times as much lead as water straight from springs nearby, but the lead content was probably not enough to put ancient citizens at risk. The utilisation of lead for domestic purposes and water distribution presents a major health hazard, worse than the aqueducts.  Major reasons to decline the hypothesis that lead poisoning took place at a larger scale: First, the calcium carbonate deposit that formed so thickly inside the aqueduct channels (so-called sinter) also formed inside the pipes, effectively insulating the water from the lead, so that the two never touched.
Second, because the water was constantly running, it was never inside the pipes for more than a few minutes, and certainly not long enough to become contaminated.)

And if you want to know the lead pipes sizes..

Keep reading

Badab Soort (Persian: باداب سورت‎‎) is a natural site in Mazandaran Province in northern Iran, 95 kilometres (59 mi) south of the city of Sari, and 7 kilometres (4.3 mi) west of Orost village. It comprises a range of stepped travertine terrace formations that has been created over thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside.
Invitation to iran

Landscape Language

Travertine (n) – calcium carbonate deposits

If you’ve ever walked the Trail of the Shadows in Longmire you may have noticed a large section of bare, yellowish-white ground in the Longmire meadow. This area is covered in travertine, a layer of calcium carbonate deposits created by volcanic mineral springs. The mineral springs are still active, constantly building up more travertine deposits. What other signs of volcanic activity have you seen in the park?

NPS Photo. Forest and thick meadow reeds and grasses surround a section of bare white and yellow ground. ~kl

Diamonds are a very well-known symbol that are almost always associated with wealth and beauty. They are worn as adornments in rings, necklaces and other types of jewelry.

The word diamond is derived from a Greek word meaning “invincible”. This is an accurate depiction as diamonds cannot be destroyed. They are created by a massive weight weighing down carbon deposits and have reportedly been around since 400B.C.

Diamonds are seen as being one of the most precious and sought after stones in the world. This makes them a great choice for a tattoo design for someone who wants to represent these ideals and that of inner beauty and courage.

In ancient times it was believed that if you wore a diamond with you it would protect you from evil forces and give you strength to overcome your fears. The Indian diamond throne of Buddha became a symbol of the center of the universe and infinity.

Diamond tattoos have also been linked to magic as it is rumored to have incredible magical energy. In the Middle Ages only priests and emperors were able to wear them and legends state that Satan could not bear the sight of the light that was bore of the diamond’s brilliance.

Diamonds symbolize peace, purity, honest light and invincibility. When placed in an engagement ring setting they become of symbol and love and loyalty.

Numerous design elements can be added to a diamond tattoo such as roses, skulls, flowers, rings, crosses, crowns or hearts. Many people opt to have their artist show the shine of the diamond by adding white highlighting. Different designs can alter the meaning. For example:

Diamond in a crown: symbolic of royalty and luxury

Diamond with wings: depicts freedom where the diamond represents material wealth and the wings symbolize the letting go of that materialism.

Diamond ring: is a symbol of everlasting love

Black diamond: rebelliousness and audacity.

Diamond with roses: a love for beauty

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Was Earth Born With Life On It?

“By finding graphite deposits in zircons that are 4.1 billion years old, graphite deposits that show this carbon-12 enhancement, we now have evidence that life on Earth goes back at least 90% of Earth’s history, and possibly even longer! After all, finding the remnants of organic matter in a certain location means the organic matter is at least as old as the location it’s buried in, but it could still be even older. This is so early that it might make you think that perhaps this life didn’t originate here on Earth, but that Earth was born with life. And this could really, truly be the case.”

How old is life on Earth? If all you had to go on was the fossil record, you’d run into severe trouble once you went back more than one or two billion years, as all your rock would have metamorphosed, making examination and identification of fossils impossible. But recently, we’ve discovered another method: to measure the isotopic content of carbon deposits in ancient rock formations. The carbon-12 to carbon-13 ratio is a surefire signature of life, and tells us that life on Earth goes back at least 4.1 billion years: 90% of the age of our planet. Could this be the hint we’ve needed to conclude that life on Earth actually predates the Earth itself? It’s not quite certain, but the beauty of science is we can always test it and find out! Here’s how.

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Matrix Opal with Extensive Red Fire - Andamooka, South Australia

Like most matrix opal material from this region this specimen was sugar treated by the miners before being honed to a superb level of polish. The process—a classic and long-standing tradition—involves soaking the original rough specimen in a sugar solution and then boiling it in acid to deposit carbon in the available pore spaces, resulting in a dark background. The procedure is performed to reveal the excellent pinpoint fire and play-of-color of the mineral within the matrix. The face of the present, fine specimen displays predominantly red flash, with speckled orange, green, and electric blue. A side view of the stone reveals a lower band of vivid, iridescent green play-of-color.