Identification of plagioclase extinction-angle features from polarized images using deep neural network.

Plagioclase is a principal component of the Earth's crust, whose compositional and structural analysis is vital for understanding the crust's construction and evolution. Accurate identification of extinction angle features plays an important role in determining the sodium-calcium content in plagioclase. Manual evaluation of these extinction angle features is tedious and dependent on human expertise.

Zorotypus hukawngi sp. nov., a Fossil Winged Zoraptera (Insect) in Burmese Amber.

A new species of the insect order Zoraptera, Zorotypus hukawngi sp. n., is described and figured based on one not well-preserved specimen in mid-Cretaceous amber from the Hukawng Valley in northern Myanmar.