Photos, videos and docs of Earthwatcher, with the keywords: "Cornwall"

Brown Willy on Bodmin Moor, Cornwall

nobody@ipernity.com (Earthwatcher) — Sun, 01 Jan 2012 14:50:58 +0000

Originally uploaded for the Guesswhere UK Group.

Brown Willy is a somewhat degraded granite tor on Bodmin Moor and at 420 m elevation, is the highest point in Cornwall. The viewpoint is from Little Rough Tor, about 1200 m away to the north west.

Rocky Valley, near Tintagel, Cornwall

nobody@ipernity.com (Earthwatcher) — Wed, 14 Mar 2012 15:24:31 +0000

Earthwatcher has posted:

Originally uploaded to the Guesswhere UK group.
This is a view upstream from the footbridge where the SW Coast Path crosses the valley.

Rocky Valley 3, near Tintagel, Cornwall

nobody@ipernity.com (Earthwatcher) — Fri, 16 Mar 2012 16:50:29 +0000

Earthwatcher has posted:

Viewed from the South West Coastal Path.

Sevensouls Rock, north Cornwall.

nobody@ipernity.com (Earthwatcher) — Fri, 30 Mar 2012 07:24:09 +0000

Earthwatcher has posted:

Viewed from The Rumps, Pentire Head, Cornwall.
Originally uploaded for the Guesswhere UK group.

One of those bright, blustery Autumn days with crystal clear air which goes to your head like wine.

Syncline at Wrangle Point, Crooklets, near Bude.

nobody@ipernity.com (Earthwatcher) — Fri, 20 Apr 2012 07:34:24 +0000

Earthwatcher has posted:

A nice example of a tight, nearly isoclinal, upright syncline in the Bude Formation (Upper Carboniferous) at Wrangle Point, Crooklets near Bude in Cornwall.

Rocky Valley 2, near Tintagel, Cornwall

nobody@ipernity.com (Earthwatcher) — Fri, 16 Mar 2012 16:49:46 +0000

Earthwatcher has posted:

Viewed from the South West Coastal Path.

Syncline axis (detail), Wrangle Point, near Bude, Cornwall.

nobody@ipernity.com (Earthwatcher) — Sun, 06 May 2012 07:24:41 +0000

Earthwatcher has posted:

A closer view of the hinge zone of the fold in the previous photo. The 'space problem' of accommodating the beds in the hinge zone of the fold is well illustrated here. The thickened hinge zone contains several small-scale thrusts which have disrupted the thin sandstone bands.

I should have included an object for scale in this view but forgot, sorry! The pale sandstone band in the central portion of the photo is about 4 cm thick.

Plunging chevron folds at Wrangle Point, Crooklets, near Bude

nobody@ipernity.com (Earthwatcher) — Fri, 20 Apr 2012 23:12:58 +0000

Earthwatcher has posted:

These plunging chevron folds are in the Bude Formation (Upper Carboniferous). For a more detailed explanation, please see this similar photo taken near Northcott Mouth about 1 km to the north:
www.ipernity.com/doc/earthwatcher/39023798

Plunging chevron folds (detail)

nobody@ipernity.com (Earthwatcher) — Sat, 21 Apr 2012 15:37:55 +0000

Earthwatcher has posted:

More detailed view of the plunging chevron folds in the Bude Formation (Upper Carboniferous) at Wrangle Point, Crooklets, near Bude, Cornwall.

For a more detailed explanation, please see this similar photo taken near Northcott Mouth about 1 km to the north:
www.ipernity.com/doc/earthwatcher/39023798

Syncline axis, Wrangle Point, near Bude, Cornwall.

nobody@ipernity.com (Earthwatcher) — Sun, 06 May 2012 07:24:41 +0000

Earthwatcher has posted:

A view of the axis of the right-hand syncline shown in the previous photo at beach level. The Bude Formation here consists of alternating thin beds of turbidite sandstones (pale grey/brown) and fine-grained shaly siltstones/mudstones (darker grey). These chevron folds are 'similar' in style, rather than concentric. This means that material (mostly the weaker shaly beds) has had to 'flow' into the hinge zones - notice how it is thicker in the hinge, compared with the limbs of the fold.

Wrangle Point chevron folds

nobody@ipernity.com (Earthwatcher) — Sun, 06 May 2012 07:24:41 +0000

Earthwatcher has posted:

Tight upright folds in the Bude Formation (upper Carboniferous) at Wrangle Point near Bude, Cornwall. The syncline shown in the next photo...
www.ipernity.com/doc/earthwatcher/39024236
...is on the left; I was standing on the axis of central anticline to take the photo and there is another syncline just right of centre. Detailed views of the right-hand syncline axis are shown in the following two photos.

Load structures on turbidite sandstones, Crooklets, near Bude, Cornwall

nobody@ipernity.com (Earthwatcher) — Thu, 17 May 2012 22:51:33 +0000

Earthwatcher has posted:

On the limb of an anticline, near-vertically bedded turbidite sandstones in the Bude Formation (upper Carboniferous) display sedimentary structures which can be used to determine the 'way up' of the bedding. Here, the sandstones display small-scale slump or load structures on the basal surfaces, and some beds show 'fining up' on the grain size (indicated by gradual darkening of the bed).

These structures demonstrate that the vertical beds here get younger to the right.

Here's structure in its proper setting and orientation:
www.ipernity.com/doc/earthwatcher/39024212

and here:
www.ipernity.com/doc/earthwatcher/39024214

Syncline, Wrangle Point, near Bude, Cornwall

nobody@ipernity.com (Earthwatcher) — Thu, 17 May 2012 22:51:04 +0000

Earthwatcher has posted:

A broader view of the syncline shown in the previous photos. The Bude Formation here consists of alternating thin beds of turbidite sandstones (pale grey/brown) and fine-grained shaly siltstones/mudstones (darker grey).

Anticline, Crooklets, near Bude, Cornwall

nobody@ipernity.com (Earthwatcher) — Thu, 17 May 2012 22:51:14 +0000

Earthwatcher has posted:

An anticline in the Bude Formation (upper Carboniferous) at Crooklets, near Bude, Cornwall. The Bude Formation here consists of alternating thin beds of turbidite sandstones (pale grey/brown) and fine-grained shaly siltstones/mudstones (darker grey).

Minor crumpling on the south (right-hand) limb of the fold has resulted in near vertical or slightly overturned bedding. The sandstones display sedimentary structures which can be used to determine the 'way up' of the bedding. Here, the sedimentary structures are mostly rippled upper surfaces and small-scale slump or load structures on the basal surfaces. The latter can be seen in detail in the next two photos:

www.ipernity.com/doc/earthwatcher/39024212

www.ipernity.com/doc/earthwatcher/39024210

Load structures on turbidite sandstones, Crooklets, near Bude, Cornwall

nobody@ipernity.com (Earthwatcher) — Thu, 17 May 2012 22:51:23 +0000

Earthwatcher has posted:

Turbidite sandstones in the Bude Formation (upper Carboniferous) display sedimentary structures which can be used to determine the 'way up' of the bedding. Here, the sandstones display small-scale slump or load structures on the basal surfaces, and some beds show 'fining up' on the grain size (indicated by gradual darkening of the bed).

These structures demonstrate that the beds here are the right way up, i.e. have not been completely inverted by the strong folding this area has undergone. The sequence shown here gets younger upwards and to the right.

Shower over Tintagel

nobody@ipernity.com (Earthwatcher) — Thu, 17 May 2012 23:21:13 +0000

Earthwatcher has posted:

View south towards Tintagel, from Crooklets, near Bude, Cornwall.

Showery Tor 2

nobody@ipernity.com (Earthwatcher) — Mon, 22 Oct 2012 09:08:43 +0000

Earthwatcher has posted:

A walk on Bodmin Moor, Cornwall
The upland area of Bodmin Moor is comprised mainly of granite which is well seen in the isolated tors and the litter of boulders all around them.

Showery Tor (approx 385 m OD) marks the northern end of the Rough Tor ('Rowter') ridge. This view is looking easterly.

Sunlit Rumps from Pentire Point, north Cornwall

nobody@ipernity.com (Earthwatcher) — Mon, 22 Oct 2012 08:40:20 +0000

Earthwatcher has posted:

A blusterous day in September 2011. View ENE towards Rumps Point from Pentire Point.

The Mouls

nobody@ipernity.com (Earthwatcher) — Mon, 22 Oct 2012 08:35:49 +0000

Earthwatcher has posted:

The small rocky islet of The Mouls, north Cornwall, on a blusterous day in September 2011. Viewed from Rumps Point on Pentire Head.

Showery Tor 1

nobody@ipernity.com (Earthwatcher) — Mon, 22 Oct 2012 09:08:36 +0000

Earthwatcher has posted: