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

Thermodynamics shows Au is insoluble in CO2 fluids

Do IOCG deposits form from CO2 rich fluids?

Inclusion shapes can prove heterogeneous trapping

Disproportional FI trapping from heterogeneous fluids explains gas-dominant systems

A discussion of H2 analysis by mass spectrometry

A mechanism to form H2 in the MS ioniser during analyses

Why don't Exploration geologists understand fluid inclusions?

News:

New model 205 decreptiometer

Studies of 6 Pegmatite deposits

A study of the Gejiu tin mine, China

Data on MVT Pb-Zn deposits, Tunisia

Data from Hall and Mt Hope Mo, Nevada

A magnetite study - Bergslagen region, Sweden

Exploration using palaeo-hydrothermal fluids

Using opaque minerals to understand ore fluids

Decrepitation using Fe-oxide opaques

Understanding baro-acoustic decrepitation.

An introduction to fluid inclusions and mineral exploration applications.



 Interesting Conferences:


Futores II, June 4-7, Townsville, Australia

ECROFI 2017, June 23-29, Nancy, France

AOGS 14th, Aug 6-11, Singapore

SGA 2017, Aug. 20-23, Quebec city, Canada

SEG 2017, Sept. 17-20, Beijing, China

Exploration 17, Oct. 21-25, Toronto, Canada

AAG 2017 at RFG2018, June 16-21 2018, Vancouver, Canada


Comprehensive Geology Conference Calendar



Lightweight cycle touring for geologists!

I use my folding bike to go on long distance cycle tours to relieve the mental stress of dealing with minuscule fluid inclusions in mineral deposit studies. Cycle touring is a great way to see the geology as you ride. Well, you can see the geology going uphill, but the screaming downhills are so much fun that you have no time to see the geology!

My selection of the world's best bicycle tour segments


The saga of my touring bikes and changing mountain shifters to road shifters on my folding  Reach trail  bike.

Tips for cycling from Darwin to Adelaide, 3000 Km on the Stuart Highway, central Australia.

Using a GPS tracker to plot routes traveled and to make maps in gpx and kmz formats,   and display them on websites

Individual cycle tour stories and maps


Now most cycle tourists are actually into heavy duty endurance. They have a 20 Kg bike with 50 Kg of baggage - plus their own weight. This is absolutely heroic, but it isn't necessarily fun. My solution is to eliminate all the camping gear and rations and rely instead on finding a hotel of some sort each night, although this can be slightly challenging in a strange country where you cannot speak the language or even read the signs! For this lightweight touring  I use my nice "Pacific" REACH folding bike which weighs just 10 Kg. Together with 15 Kg of baggage and tools I can enjoy touring rather than pretending to be an endurance elephant.

The big advantage of this bike is that it folds up for packing and transport as normal baggage on airlines. With the possible exception of the USA where airlines  have a strong  aversion to transporting bicycles and discourage it by charging exorbitant baggage fees! But in more rational parts of the world it is easy to transport this bike - even on super-budget airlines! When packed into its carry-bag, this bike travels with me as one standard airline luggage item weighing about 22kg at check-in for no excess charge. (I take the single pannier of clothes as carry-on luggage.)  Folding and packing (or re-assembling) the bike takes 45 to 60 minutes.

Despite folding, the model of bike I use has almost identical dimensions to a normal road-race bike so it is fun to ride, rather than merely being a necessary inconvenience in order to enjoy the freedom of having your own transport!

reach1
The bike is made by Pacific Cycles, in Taiwan.

And here is my bike, modified with a rear rack and bags for touring. Shown here at the start of a tour of  Taiwan in 2011.

Note that I only ever use one pannier on the rear, as well as the bag on the top of the rack. Although this would appear to be unbalanced, it is not at all difficult to ride like this. This is the entire luggage for my 3 weeks of self supported touring in Taiwan. No support vehicles required! Sure, the small (20") wheels look odd at first, but they do not negatively affect the ride at all! I still travel just as fast as on a conventional 700c wheel size road bike. And because there is suspension on both the front and rear wheels, it is also a very comfortable bike for long tours!



chiayi






On a day trip up to the Taiwan mountains, I left off the pannier. But you still need your toolkit and somewhere to carry some spare food! This is looking over a reservoir just east of Chiayi in southern Taiwan. Chiayi is a convenient town near the mountains with many interesting routes to cycle nearby.




You could stay on the western plains of Taiwan which are completely flat - but that is so boring. The real fun cycling is in the mountains - but don't underestimate these mountains - they are even more serious than the European alps, though they rarely have snow because Taiwan is in the tropics!


Taiwan is not the only place I have been cycle touring - but it was one of the most pleasant.
Here is my cycling route map in Taiwan (first visit)  (opens in a new window)
Here is a story of my tour.  And here are some tips about cycle touring in Taiwan.

In August 2011 I found an excuse to return to Taiwan again and rode another 1900 Km around the mountains, including an amazing "traffic jam" event with 7000 cyclists riding up to the high pass at 3250m altitude from a start altitude of 500m just 55 Km away. It was another chance to enjoy many more rides in the mountains.
This is my route map of the second visit.  (opens in a new window)
Here is a story of my second visit.

During the climb eastwards to Wuling summit, the road was often jammed with cyclists walking their bikes because of the steep gradient. And at the end of the day I relaxed with 4 new cycling friends in Tianxiang village within the rugged and beautiful Taroko gorge, before I rode back west over the summit again the next day.





I have also toured across Europe from Spain to Switzerland. But it rains cold rain in summer in europe! (2007) (Route map) 
And another tour around eastern europe (map) (2010) starting from Switzerland to Austria and Hungary, then Slovakia, Poland, Czechia, Germany and back to Zurich. My story about this tour is here.
My tour from Boston to Fredericton (Canada) and back (2009) was nice, although the weather was surprisingly lousy. Yet more rain! (My tour story is here)
For great weather, the tour from Brisbane to Cairns (map)  (2009) on the Australian east coast was by far the best. Guaranteed sunshine every day!
And the South Island of New Zealand (map)  (2009) was scenic although the wind was often ferocious. (Tour story)

Just head off up the road to an unknown destination and enjoy the ride!


In January 2012, I rode the coastal route 1000 Km from Adelaide to Melbourne, which was an endurance trial with much headwind. But the Great Ocean Road near Apollo Bay is a sublime scenic route that is great for cycling, as seen here. My story and route maps about this adventure is here.

apollo bay


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In August 2012 I ran a tour for 3 geologists after the IGC meeting in brisbane. Here, Anastasiya, myself and Hong Rui have arrived at Caloundra on the Sunshine coast, north of Brisbane and also Hong Rui, Fangfang and Anastasiya celebrate their successful cycle ride. This is one of my favourite areas to ride, with many backroads, small towns, beaches and mountains also.

caloundra beach3 cyclists

After this friendly tour, I rode some 1400 Km around the ranges of SE Qld. Here is my route map. (opens in a new window)
And here is my story about this ride.

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In january 2013 I commenced a ride from Melbourne to Brisbane, but terminated the tour at Canberra due to weather and mechanical problems.
Here is my story about the ride and the route map. The route covered 1000 Km in 6 days of touring.
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In June 2013 I rode 3500 Km around western turkey. An Amazing destination. The story is here.

In August 2013 I rode 1800Km around south-central Sweden (Bergslagen). The story is here.

After about 40,000 Km the frame of my bike broke in Japan in August 2014 and I had to replace it with a new bike, shown here:

new bike


I have had to change to flat handlebars. But after 2000 Km of bad roads in China I find that these bars are not as comfortable as the drop bars of my previous bike. (I have subsequently changed to drop handlebars, explained here). But this bike does have a built in rack which folds easily, a great improvement over the add-on rack of the previous bike and folding the bike for transport is now much easier.

The story of my first 2014 trip to western china is here.
The story of my 2014 trip to Japan and southern china is here.