Posts Tagged ‘geology’


What do I think is pretty awesome?

June 18, 2015

Volcano Calbuco erupted on April 22, 2015, for the first time in four decades. Located close to the cities of Puerto Varas and Puerto Montt in southern Chile. We (Jonas Dengler and Martin Heck) spend the prior couple of days on the neighboring volcano Osorno (~20km linear distance) shooting timelapses. After an amazing night under the nightsky we took the cable car downwards after a delay caused by repairs. Already late we headed south to catch the ferry on Routa 7 down to Patagonia. After 10min on the ferry we noticed a massive, almost nuclear looking cloud boiling upwards just were we left a few hours ago. Frenetically looking for a good outlook we then rushed to the only non-forested place to get a decent view of the show. We quickly put every bit of camera-equipment we could find on the constantly growing mushroom-cloud. We shot timelapses in 8K and 4K with a Pentax 645Z and Canon 6D. On the A7s we shot 4K video to the Shogun using Kingston HyperX SSDs. We filled almost all of our memory cards in the prior night so I had to do backups while shooting all this stuff.
This was for sure the most incredible show I’ve ever seen. I think this is a once in a lifetime event and I am so happy that we were able to capture it in all its glory.


via Wordlesstech


What am I noting on tattoo Tuesday?

August 26, 2014



The eruptions of Krakatoa on August 26-27, 1883 were among the most violent volcanic events ever recorded.  The eruption was the equivalent of 13,000 nuclear blasts the size of Little Boy that devastated Hiroshima.  It obliterated two-thirds of the island on which it is located.  Although part of Indonesia, the blast was heard as far away as Perth Australia. Adding to the destruction were the immense tidal waves that followed the event.   (Wikipedia)


It is not Krakatoa, but here is a nice volcano tat.



Who discovered what today? Jan 18

January 18, 2014


Captain James Cook discovered Hawaii on this day in 1778.

hawaii James-Cook-C

He looks pretty stern for a man who spent his life on ocean cruises.

hawaii james voyages


On January 18, 1778, the English explorer Captain James Cook becomes the first European to discover the Hawaiian Islands when he sails past the island of Oahu. Two days later, he landed at Waimea on the island of Kauai and named the island group the Sandwich Islands, in honor of John Montague, who was the earl of Sandwich and one his patrons.

While the encounter started out brilliantly for the Europeans, it did not end well for them.  On a subsequent voyage, they were exposed as mortals and not the gods the Hawaiians first believed them to be and trouble reigned in this island paradise.  However, ultimately, things did not end well for the Hawaiians.

Here is a little geology information about the Hawaiian Islands that are traveling on the Pacific Plate over a hot spot on the ocean floor.


And here are some more idyllic Hawaiian shots.



hawaii 4

My bags are packed – I’m ready to go.


What is Tattoo Tuesday about?

May 28, 2013

kelleys island chart

Last week we took a road trip – a voyage, actually – to one of the off-shore islands in Lake Erie’s western basin.  Only a little over 4 square miles, Kelley’s is still one of the largest of the Lake Erie Islands.  The island was settled by Native Americans and then taken over by white settlers.  Signs of Native Americans still exist, such as Inscription Rock near the ferry dock, and mounds and earthworks on the island.

inscriptionrockcInscription Rock purportedly designed by Native Americans on Kelley’s Island

The primary industries were logging, quarrying and wine making.  I will never understand the logic of living on an island (an ISLAND!), then cutting off parts of it and selling it.  This is, however, what people did and are still doing on Kelley’s.  The quarries are impressive.  We watched a osprey float on the wind along the edge of the larger quarry stopping to stoop now and then after some kind of prey.  We never saw what he was after.

IMG_1920[1]Here’s a view of the quarry.

Now Kelley’s is mostly a vacation spot. In addition to boating, swimming, picnicking and pubbing, Kelley’s is a geologist’s paradise.  The limestone in the quarries is full of fossils.  I was after trilobites, but came up empty handed.  The trilobite, Isotelus, is Ohio’s official state fossil. And I felt silly writing that.


We did, however, find a bunch of horn corals embedded in the limestone giving a glimpse into live at the bottom of the shallow ocean that once covered this part of Ohio.

horn coralHorn coral in limestone

Also impressive are the glacial grooves that were almost lost to the limestone industry, but are now preserved as a landmark.



Kelley’s Island Glacial Grooves

The grooves were made during the last ice age when boulders at the bottom of the glacier scoured out these grooves out of the limestone as the glacier moved over the land.

Anyway – the topic of tattoo Tuesday is Trilobites.  I found this interesting article in Discover about people who are combating extinction (or at least commemorating extinct species) by getting them tattooed on their bodies.

Here are some trilobites:


Here are some trilobite tattoos:





What has no upper limit?

April 26, 2013

Get ready to rumble – there’s a whole lot of shaking going on because today is Richter Scale Day.  April 26 is the birthday of Charles Richter (born in 1900 in Overpeck, Ohio) who developed the eponymous scale for comparing earthquakes.  Richter repeated emphasized that there is no upper limit to the scale, however each level of the scale represents a ten-fold increase in magnitude from the previous level.  The most powerful earthquake recorded was the 1960 Chilean earthquake that measured 9.5 on the scale.

Magnitude differs from intensity, as explained on the USGS earthquake site:

Magnitude and Intensity measure different characteristics of earthquakes. Magnitude measures the energy released at the source of the earthquake. Magnitude is determined from measurements on seismographs. Intensity measures the strength of shaking produced by the earthquake at a certain location. Intensity is determined from effects on people, human structures, and the natural environment.

For a comparison of magnitude versus intensity, look here.



Read an interview with Charles Richter here.

Read more about earthquakes here.


What am I collecting?

September 13, 2012

I was interested to read Why, Because Science’s recent post on awesome minerals.  I also had a geological experience just last weekend.  I attended a blingie bead trunk show with a friend, but was seduced by the beads that were fashioned from rocks and minerals.  Being struck helpless, I was forced to buy several specimens for my collection and they are:

From the left

Sardonyx – this really has a very nice chevron pattern that is difficult (impossible) to see in this photo

Gray Brecciated Jasper – with some quartz crystal inclusions


Petrified Wood Jasper

African Turqoise – I may turn this into a necklace – I really like it

Labradorite – this one shows a nice play of colors known as labradorescence

These are all beads and are drilled along the long axis, but I wanted them for my rock and mineral collection.  The largest pieces are 30 x 40 mm.