Volcanoes and Volcanic Eruptions. Magmas and Lava. Since volcanic eruptions are caused by magma (a mixture of liquid rock, crystals, and dissolved gas) expelled onto the Earth's surface, we'll first review the characteristics of magma that we covered previously. Three basic types of magma: Mafic or Basaltic-- SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na.
EMEA: Europe, the Middle East and Africa, marked on a worldmap. EMEA (or EMEIA if India is included), is a shorthand designation meaning Europe, the Middle East and Africa. It is used by institutions, governments as well as in marketing and business. It is particularly common among North American companies. The region is generally accepted to include all European nations, all African Nations, and extends east to Iran, but including Russia. Typically this does not include independent overseas territories of mainland countries in the region, such as French Guyana.
Here is a list of EMEA countries. â¦â¦..click here to see the entire list at our new web location THANX! â¦â¦..click here to see the entire list at our new web location THANX!EMEA means Europe, Middle East, and Africa. It is commonly used in business as a way to convey service coverage or locate an office for a particular business.I have received a lot of comments from readers saying they have never heard of terms like MENA or EMEA or did hear but had no idea what the letters stood for.MEA means Europe, Middle East, and Africa. It is commonly used in business as a way to convey service coverage or locate an office for a particular business. I have received a lot of comments from readers saying they have never heard of terms like MENA or EMEA or did hear but had no idea what the letters stood for.