Category: Interpreting ancient environments

June 27, 2022

Our knowledge of how ammonoids and nautiloids functioned is based almost entirely on a single

May 31, 2022

Some basic gastropod morphology to assist sedimentological interpretations This is a companion post to bivalve

May 27, 2022

Some basic bivalve morphology to assist sedimentological interpretations Ok, you’re not a paleontologist but during

May 7, 2022

The term neomorphism is reserved for recrystallization of a mineral and its polymorphs to new

April 27, 2022

Outcrop expression of maximum regressive, maximum flooding, and ravinement surfaces Six stratigraphic surfaces define the

April 27, 2022

Outcrop expression of subaerial unconformities and regressive surfaces of marine erosion Six stratigraphic surfaces define

April 1, 2022

Pyroclastic surges, are dilute, ground-hugging turbulent flows of hot, juvenile volcanic particles and a fluid

March 18, 2022

I have been under the (mistaken) impression that accretionary aggregates, including accretionary lapilli, are occasional

March 9, 2022

Block and ash flows – a hot pyroclastic flows that transport big chunks of rock

February 21, 2022

Ignimbrite is a rock name. Ignimbrites form primarily from the collapse of eruption columns during