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File:Grand Canyon Trail of Time - Folded Vishnu basement rock.jpg

Description The Trail of Time is an interpretive walking trail that focuses on Grand Canyon's vistas and rocks, encouraging visitors to ponder, explore, and understand the magnitude of geologic time and the stories told by canyon's rock layers and landscapes. Walking the trail is intended to give park visitors a visceral appreciation for the magnitude of geologic time...

.. This 4.56 km (2.83 mile) long trail is actually a geologic time-line. Each meter on the trail signifies one million years of Grand Canyon's geologic history; and bronze markers mark one meter intervals. Every tenth marker is labeled in millions of years. NPS Photo by Erin Whitakker .

For more information: tot.unm.edu/
Date 21 January 2011, 11:44:10
Source Flickr: Grand Canyon Trail of Time - Folded Vishnu basement rock - 0331
Author Public Domain
Permission
( Reusing this file)
Checked copyright icon.svg This image, which was originally posted to Flickr.com, was uploaded to Commons using Flickr upload bot on 20:21, 3 January 2013 (UTC) by Tillman ( talk). On that date it was licensed under the license below.
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attribution		 This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain. See the NPS website and NPS copyright policy for more information.
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Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
Image title
  • The Trail of Time is an interpretive walking trail that focuses on Grand Canyon's vistas and rocks, encouraging visitors to ponder, explore, and understand the magnitude of geologic time and the stories told by canyon's rock layers and landscapes. Walking the trail is intended to give park visitors a visceral appreciation for the magnitude of geologic time...

    .. This 4.56 km (2.83 mile) long trail is actually a geologic time-line. Each meter on the trail signifies one million years of Grand Canyon's geologic history; and bronze markers mark one meter intervals. Every tenth marker is labeled in millions of years. NPS Photo by Erin Whitakker .

    For more information: tot.unm.edu/
Camera manufacturer NIKON CORPORATION
Camera model NIKON D90
Author NPS photo by Erin Whittaker
Exposure time 1/400 sec (0.0025)
F-number f/10
ISO speed rating 200
Date and time of data generation 11:44, 21 January 2011
Lens focal length 32 mm
Width 4,288 px
Height 2,848 px
Bits per component
  • 8
  • 8
  • 8
Pixel composition RGB
Orientation Normal
Number of components 3
Horizontal resolution 300 dpi
Vertical resolution 300 dpi
Software used Adobe Photoshop CS5 Windows
File change date and time 22:08, 17 December 2011
Y and C positioning Co-sited
Exposure Program Not defined
Exif version 2.21
Date and time of digitizing 11:44, 21 January 2011
Meaning of each component
  1. Y
  2. Cb
  3. Cr
  4. does not exist
Image compression mode 4
Shutter speed 8.643856
APEX aperture 6.643856
Exposure bias 0
Maximum land aperture 4.1 APEX (f/4.14)
Subject distance 1.68 meters
Metering mode Pattern
Light source Unknown
Flash Flash did not fire, auto mode
DateTime subseconds 00
DateTimeOriginal subseconds 00
DateTimeDigitized subseconds 00
Supported Flashpix version 0,100
Colour space sRGB
Sensing method One-chip colour area sensor
File source Digital still camera
Scene type A directly photographed image
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Digital zoom ratio 1
Focal length in 35 mm film 48 mm
Scene capture type Standard
Scene control None
Contrast Normal
Saturation Normal
Sharpness Normal
Subject distance range Unknown
GPS tag version 2.2.0.0
Serial number of camera 3218418
Lens used 18.0-105.0 mm f/3.5-5.6
Date metadata was last modified 15:08, 17 December 2011
Unique ID of original document 13C9F09A2716E92C501D5F515EDC0ED8
Copyright status Public domain
Short title
  • Grand Canyon Trail of Time - Folded Vishnu basement rock - 0331
Keywords
  • grand canyon
  • geology timeline rocks minerals "Trail of Time" exhibit walk interpretive
IIM version 35,365

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