Applied mineral exploration methods, hydrothermal fluids, baro-acoustic decrepitation, CO2 rich fluids
Newest Topics:

New model 216 decreptiometer

Exploration of the Mt. Boppy Au deposit, NSW

Forensic tests on soil samples


Do IOCG deposits form from CO2 fluids?

How CO2 inclusions form from aqueous fluids (UPDATED)

Understanding heterogeneous fluids : why gold is not transported in CO2-only fluids

Gold-quartz deposits form from aqueous - CO2 fluids: NOT from CO2-only fluids

Discussions why H2 analysis by mass spectrometry is wrong


Gold at Okote, Ethiopia

Kalgoorlie Au data

Sangan skarn Fe deposits, Iran

Studies of 6 Pegmatite deposits

A study of the Gejiu tin mine, China

Exploration using palaeo-hydrothermal fluids

Using opaque minerals to understand ore fluids

Understanding baro-acoustic decrepitation.

An introduction to fluid inclusions and mineral exploration applications.

 Interesting Conferences:


ECROFI Iceland
     July 2-6

AOGS Singapore
    30 Jul - 4 Aug 2023

SGA Zurich Aug 2023

Comprehensive Geology Conference Calendar

A bicycle tour in North Queensland

The Atherton Tablelands, 1700 Km, April 2016

The Atherton tablelands region, inland from Cairns, is an interesting area geologically, because of recent volcanism and also because it is a lush tropical farmland area well known for its dairy industry. The original dense tropical forests have been cleared in many areas to make lush open grasslands for cattle grazing, but many areas of forest remain. Many volcanic craters occur and conical hills which are remnants of volcanic necks are common.

My route:   1700 Km.   Entirely on paved roads.

townsville to cairns route map

A detailed route map which works in Google Earth is here. (a .kmz file)

Starting from Townsville, it is some 350 Km north to Cairns and the only coastal route is on the arterial Bruce highway, on which there can be much traffic. But for most of this distance there is a reasonable shoulder on the highway which facilitates cycling. In April the prevailing winds were south-easterly so traveling north is good. The route to Cairns is not hilly, but the climb to the tablelands is significant and the southern tablelands can be quite hilly. In fact the highest altitude declared road in all of Queensland is here, near Ravenshoe, which is also the highest town in Queensland. There are only 4 routes up to the tablelands from the coastal highway. 

To reach Mossman (and Port Douglas) from Cairns, the Bruce highway is narrow with no shoulder and traffic is heavy, so cycling is stressful, but the coastal road is very scenic.
Roads in the Atherton - Malanda - Millaa Millaa - Ravenshoe region are narrow without a shoulder and there can be much truck traffic on the main routes. But there are some pleasant alternative secondary routes which are nice for cycling. The "Old Palmerston" road from near Ravenshoe to Millaa Millaa was very pleasant and scenic with light traffic as most traffic uses the new alternative highway.

In early April daytime temperatures are still warm, from 30 to 34 C even on the tablelands. But nights are cool and pleasant (not cold) in the Tablelands. The humidity can be high along the coast at this time of year and there could even be a late season cyclone, though that would be unusual.

This region is a very pleasant location for cycle touring.