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'Sink hole! Demonstrate sink hole processes in action'
Sink holes commonly form over limestone bedrock, but also develop where the underlying materials are even more soluble, such as rock salt and gypsum deposits. This classroom activity models [...]
Auf Papua Neuguinea ist der Inselvulkan Manam wieder aktiv. Nach kurzer Pause fördert er wieder Aschewolken. Aktuell detektiert das VAAC Vulkanasche in einer Höhe von 5.500 Metern über dem Meeresspiegel. Bei den Eruptionen der letzten Wochen [...]
A while back I was visiting my cousin Kenny and he had this fossil under the microscope. The field of view might be 4mm. It has a blue glossy sheen to it. It appears to be a fragment of a fish fossil. The fossil was found in Indian Springs [...]
The Broadway Valdez District is a swath of territory, named by city planners, centered on Broadway and extending from 23rd Street up to I-580. The area is undergoing redevelopment at a furious pace. For my purposes, the area will give birth to a [...]
Protoeaster nodosus / Chocolate Chip Sea Star
If you're lucky enough to swim in the warm, shallow waters of the Indo-Pacific region, you may encounter one of the most charming of all the sea stars, the Protoeaster nodosus.
These beauties are [...]
Still image taken from the time-lapse video on the AzGS web site showing the 1887 San Bernardino earthquake.
I've been contemplating a write-up of the recent earthquakes in southern California and I hope to get to that soon. In the meantime, this [...]
Poor Dystylosaurus. Always the bridesmaid. No-one seems to care much about it, yet the one and only vertebra that bears that name is the single most diagnostic elements out of all the individual bones that have been assigned to Supersaurus over the [...]
Ionela Samoila Interview Please describe your job duties while on the JR. What will you be doing on a... Read more
Tuzoia sinensis (Pan, 1957) / York Yuxi Wang Collection
A large extinct bivalved arthropod, Tuzoia sinesis (Pan, 1957) from Cambrian deposits of the Balang Formation. The Balang outcrops in beautiful Paiwu, northwestern Hunan Province in southern [...]