Friday 6 September 2013

Rock of Ages

Perched Granite Boulder, Lands-end, UK

During a recent holiday on the Pernwith peninsula (near Land’s End in Cornwall, England) I took a set of photographs of the coastal scenery and rock. These photographs can be seen in this Facebook album. For comparison I have also added some photos I took in 2006 on Bodmin Moor. (Also in Cornwall)

Both Bodmin moor and the Penwith peninsula are the eroded remains of huge granitic intrusions. Granite is melted and re-solidified Earth’s crust, although the exact mechanisms of both the intrusion and the subsequent production of exfoliation joints in the granite by erosion is still the subject of academic debate according to this wiki article.

Whenever I’m confronted with scenes of cliffs, valley’s and rock pinnacles such as we see at Penwith, the deep time needed to generate this “rock of ages” landscape feels very real. In this particular connection crustal melting caused by plate collisions that built mountains was followed by the slow cooling of rock deep underground. This slow cooling is evidenced by the large crystals of Penwith’s coarse grained granite. (See the large white feldspar crystals in one of my photos). All this was followed by an extremely slow process of grain by grain erosion. In fact when one beholds a rock pinnacle of granite and imagines that it was once underground and surrounded by an extensive apron of extremely hard igneous rock one senses that the length of time needed to leave this isolated outlier must be immerse, let alone first erode the mountain of rock above it.

As far as Cornwall is concerned both Bodmin Moor and the Penwith peninsula have the greatest concentration of Neolithic and Bronze Age stone monuments.  This may be simply because these granite landscapes provided a ready supply of very durable stone. Or, and this is a speculation, did these ancient people, seeing the marvellous rock formations around them desire to ape whatever agency they believed created them?  We have, of course, no idea what these prehistoric communities believed about a cosmos whose workings on the grand-scale was utterly mysterious to them. Extrapolating from what we know today of preliterate societies it is quite likely that prehistoric communities understood their surroundings in terms of the operation of background sentience. To them, therefore, the landscape was full of awareness and sacredness. Today, however, with our mechanical paradigm, we understand how insentient processes have generated these remarkable forms; we see these processes as being utterly unaware of us and themselves, with no power of empathy; in effect they are psychopathic! No surprise, then, that an atheist, when he saw the frightening and awesome spectacle of the recent meteor entering the atmosphere over Russia, should say “Nature doesn't care about us!”

Today we have to dig a bit deeper, quite a bit deeper in fact, before we find sacredness. But then we know a lot more than those simple Neolithic societies; a lot, lot more. So where we lose we also gain. We know today that conscious sentience is not to be found at the low level of the bit, byte, particle, or boulder but at the high level of the grand organization of the world . (See also here)


The Cheesewring, Bodmin Moor, UK. Perched pillows of granite.

No comments: