https://www.usgs.gov/publications/geology-central-costa-rica-and-its-implications-geologic-history-region
The oldest rocks in Costa Rica, the Nicoya Complex, crop out in an arcuate belt along the Pacific coast and outside the mapped area. The complex is an...
costa ricain thegeologycentralimplications
https://sciencedaily.com/releases/2020/09/200904100549.htm
Researchers have discovered microdiamonds in the Nishisonogi metamorphic rock formation in Nagasaki Prefecture, Japan. Microdiamonds in metamorphic rocks are...
geologic historyjapanquestiondiscoverymetamorphic
https://www.usgs.gov/publications/geologic-history-grecian-rocks-key-largo-coral-reef-marine-sanctuary
Two transects were drilled across the major ecologic zones of the c. 750 by 200 m reef, whose accumulation was controlled by a local Pleistocene topographic...
geologic historykey largocoral reefgrecianrocks