Geyser Opal "Spencer Opal"

Geyser Opal “Spencer Opal”: What is Geyser Opal? How it Formed?

Benitoite crystals under UV light

Benitoite : The Rarest Gemstone Found in the World only been...

A detail of the southern wall of the Las Cañadas caldera de . It is the best exposed sector of this volcanic structure. (Imagen: Joan Martí)

Study provides new insight into the origin of Las Cañadas caldera...

A panoramic view of one of the Arico ignimbrite outcrops where the two units can be seen.(Image: Joan Martí)

A new study determines the influence of the topography over ...

Plotosaurus bennisoni is a mosasaur from the Upper Cretaceous (Maastrichtian) North America. Restoration illustration from Wikimedia Commons, CC BY 3.0.

Did mosasaurs do the breast stroke?

Fig. 1 Map of the 2016 Kaikōura earthquake and surrounding area. (A) Transpressional tectonic setting of the northeastern South Island of New Zealand. (B) Map of surface ruptures from the 2016 Mw 7.8 Kaikōura earthquake, shown in bold black lines with the Papatea fault in red (8, 28). Dots represent scaled relative energy release from back-projection results (15) and are colored by time since rupture onset. Mapped active faults that did not rupture during the Kaikōura event are indicated by thin black lines (28). Credit: Science Advances 02 Oct 2019: Vol. 5, no. 10, eaax5703, DOI: 10.1126/sciadv.aax5703

Unusual fault rupture during Kaikōura quake

A drone image two weeks after the flank collapsed. The volcano peak that had measured 320 meters is missing. Credit: GFZ

Early warning signals heralded fatal collapse of Krakatau volcano

Pterosaur

New Australian pterosaur may have survived the longest

One of the three fossils of Lessiniabatis aenigmatica (MNHN F.Bol.566) from the famous fossil site of Monte Bolca (Italy) preserved as part and counterpart. The specimen is housed in the Museum National d'Histoire Naturelle of Paris. Credit: Giuseppe Marramà

Fossil fish provides new insights into the evolution

A world map that shows where similary platinum spikes have been discovered in the world. The latest discovery is at the Wonderkrater site in Limpopo Province, South Africa. Credit: Francis Thackeray/Wits University

New research supports hypothesis that asteroid contributed to mass extinction

1...118119120...686Page 119 of 686