APATITE FISSION TRACKS and mountain denudation / TRAÇOS DE FISSÃO EM APATITA e denudação das montanhas

Those small minerals can help to understand how quickly a mountain belt is eroded. The method is based on the decay of radiogenic elements within the mineral structure, which leaves small tracks due to the damage caused by the nuclear disintegration. By counting the density and length of the tracks, we can estimate the timeContinuar lendo “APATITE FISSION TRACKS and mountain denudation / TRAÇOS DE FISSÃO EM APATITA e denudação das montanhas”

PLAGIOGRANITE – a very important component of the ocean floor!

PLAGIOGRANITO – um componente muito importante do fundo do oceano! Do you know what plagiogranite is? This very special type of granite is composed of plagioclase with small amounts of quartz and ferromagnesian minerals. They were long recognized as very important parts of ophiolitic complexes, rocks that represent ancient pieces of ocean floor that areContinuar lendo “PLAGIOGRANITE – a very important component of the ocean floor!”

Aragonite crystal fans in 3D

Aragonite crystal fans in three dimensional view, with pseudo-hexagonal sections in the surface where the coin is resting and prismatic sections in the side cut. Those beautiful crystals are precipitated directly on the seafloor when the ocean is supersatured in CaCO3. This happened ca. 630-540 million years ago, after a global glaciation created ice capsContinuar lendo “Aragonite crystal fans in 3D”

The Ozone Layer and Mass Extinctions

Could damage to the ozone layer cause mass extinctions? Researchers from the University of Southampton presented evidence that this happened 360 million years ago. Changes in the atmosphere chemistry allowed for UV rays to hit harder and cause mutations that led to the extinction of various life forms. Could this happen again? It’s not wiseContinuar lendo “The Ozone Layer and Mass Extinctions”

Media Outreach – Social Media

Hi everybody, Project MOBILE networking is on! Follow for news, results, meetings, challenges and much more about this exciting multi-disciplinary scientific effort! Pessoal, sigam a página do PROJETO MOBILE nas redes sociais para notícias, resultados, reuniões, desafios e muito mais sobre esse empolgante esforço científico multidisciplinar! https://www.instagram.com/geolifemobile/ https://www.facebook.com/geolifemobile/

Media Outreach – UFMG

Get to know more about Project MOBILE and other two projects developed at UFMG / Conheça mais sobre o Projeto MOBILE e outros dois projetos desenvolvidos na UFMG https://ufmg.br/comunicacao/noticias/tres-professores-da-ufmg-farao-pesquisas-com-apoio-do-instituto-serrapilheira?fbclid=IwAR0vZ2fRW3O0TTxwsB1nVutwbxfOW3J4P16RbI9wJVuroQWyzL2ECt0jfDM

Corumbella werneri from Mato Grosso do Sul, Brazil

Photo by F. Caxito This little fellow is Corumbella werneri (Hahn et al., 1982), one of the oldest animal fossils in South America. Here it is seen in limestone from Corumbá, Mato Grosso do Sul, Brazil. Corumbella and her cousin, Cloudina, are among the first animals to develop a calcareous shell. Why did they doContinuar lendo “Corumbella werneri from Mato Grosso do Sul, Brazil”