Monday, January 5, 2009

Langkawi - Geopark

As I said, Pulau Lankawi is home to a UNESCO "Geopark", actually three separate park areas totalling over 500 sq.km. One features lower Paleozoic clastics (mostly Sandstone, mid-Cambrian lacustrines through upper Cambrian marginal marine and marine rocks); one featuring Silurian-Devonian limestones, capped with galcial marine deposits (Gondwanaland ice cap!?!); and the third with more Paleozoic seds and a bunch of Mesozoic granites. Cool.

We visited the Cambrian stuff yesterday (may as well start at the beginning... or only 4 billion years after the beginning, depends on how you look at it). We rode a cable car up a 600m mountain of Cambrian sandstones, only to see the ripple marks at the top.



The little intoerpretive centre had a small but remarkable collection: when is the last time you saw Arenicolites and Condrities in a museum, and labelled as such?


The view from the top ws also notable.




Then we were of to a pretty nice beach:


but the best part of the beach was that it was surrounded by more Cambrian clastics, with ripples and loading structures (pillows, flames) preserved, and some familiar honeycomb weathering.



Today, we went to another beach. Less cool geology around (karst everywhere...), but it was hard to complain, as the sun was out and, well, look at this beach!


do I have to come home?

2 comments:

Anonymous said...

Hey it is called taphony weathering, not honeycomb weathering you bonehead!

Hey we tied our game today!

Brent

P@J said...

Brent, I am a consultant now. The details about "Taphony" and "honeycomb" no longer matter to me, unless thay enhance shareholder value.

a Tie in the "A" is a win in my book. Wait; Tie? don't we throw skip rocks to break a tie?