The Ancient Earth 7. The Art of the Stromatolite
Algae, Fossil Slime and Organic Precambrian Art Stromatolites are the earliest physical life forms on earth; they were the precursors […]
From Sand to Stone = Sandstone; A Remarkable Transformation
You are at the beach, by the river, in the garden; you walk through soft sand, squish through mud,
Someone passed this way: Tracks, trails, impressions, and footprints
Trace Fossils Imagine the squelch! Footprints of people, birds, and dogs at the beach. Most of us have probably seen
How do we know which way is up #3. A philosophical interlude
How Geologists Interpret Ancient Environments. 3 A Philosophical Interlude You are confronted by a rocky cliff and your geologist friend
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
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