How do we know which way is up? #2 Ruffles and desiccation
How Geologists Interpret Ancient Environments. 2 Ruffles and desiccation Nearly all sedimentary rocks contain structures – fabrics, planes, contortions. If […]
Interpreting ancient environments
How do we know which way is up? #1. Getting started
How Geologists Interpret Ancient Environments. 1 Getting started You are confronted with rock formations that might look something like this…
The Ancient Earth 6. Life and all that… Part 2
The Origin of Life? – Science persists in asking… Galileo Before the Holy Office Joseph Nicolas Robert-Fleury When our Renaissance
The Ancient Earth 5. Life and all that… Where, How, When? Part 1
The Origin of Life? This is a vexing question; perhaps the ultimate puzzle! It invokes wonder and intrigue for many,
The Ancient Earth: 4. Water – Oceans of the stuff
The Ancient Earth 4. Where did all that water come from? The oceans cover 71% of our planet, and account
Ancient earth. 3 The air we breath; how our atmosphere evolved
The really ancient earth: How our atmosphere evolved Take a deep breath. Savour it. One of the few absolutes of
Ancient earth. 2 How old is it?
How old is the Earth? “In the beginning the Universe was created. This has made a lot of people very
Ancient earth. 1 A time-line for the first 4 billion years
A time-line for the first 4 billion years of Earth history The Cambrian, that relatively brief period in geological history