Walking to Great Barrier Island
A short hike to the beach 20,000 years ago The Last Glaciation began about 110,000 years ago with massive expansion […]
Interpreting ancient environments
Budget Surpluses and Budget Deficits
Coastal Supply and Demand Budget Surpluses and Budget Deficits How often have you heard or seen it; the owners
Sea-Level Change; Busting a Few Myths
So you think sea level is the same everywhere! Climate change predicts that sea levels will rise at an increasingly
When Time Goes Missing
The value of missing time Geological time that has gone missing When you next look at sedimentary strata exposed in
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…