Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Apiragua

stripes

Occurrence number: 
130-00-020
Country: 
Paraguay
Region: 
Paraguari
Location: 
Longitude: -56.88, Latitude: -25.92
Carbonatite: 
No

An essexite stock. A large area of alkaline rocks is shown on Plate 1 of Milton and Eckel (1959) but this is an error, most of the area being occupied by Silurian sandstones with only a small area of essexite, about which there is little detail available.

References: 

MILTON, C. and ECKEL, E.B. 1959. Igneous and metamorphic rocks. In Geology and mineral resources of Paraguay - a reconnaissance. Professional Paper, United States Geological Survey, 327: 12-50.
PUTZER, H. 1962. Geologie von Paraguay. Gebruder Borntraeger, Berlin - Nikolassee 183 pp.
MARINGO, V., personal communication, 1981

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith