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File:K-T-boundary.JPG

Summary

Description
English: The intermediate claystone layer contains 1000 times more iridium than the upper and lower layers. It is the boundary between Cretaceous and Tertiary Periods. Picture taken by the author at San Diego Natural History Museum. The rock is from Wyoming, USA.
Date August 2009
Source Own work
Author Zimbres - Attribute it to Eurico Zimbres
Permission
( Reusing this file)

Free for all use

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I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
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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.
Camera manufacturer SONY
Camera model DSC-W5
Exposure time 1/8 sec (0.125)
F-number f/2.8
ISO speed rating 250
Date and time of data generation 20:22, 8 February 2005
Lens focal length 7.9 mm
Width 2,274 px
Height 1,913 px
Orientation Normal
Horizontal resolution 72 dpi
Vertical resolution 72 dpi
Software used digiKam-0.10.0
File change date and time 20:22, 8 February 2005
Y and C positioning Co-sited
Exposure Program Normal program
Exif version 2.2
Date and time of digitizing 20:22, 8 February 2005
Image compression mode 8
Exposure bias 0
Maximum land aperture 3 APEX (f/2.83)
Metering mode Pattern
Light source Unknown
Flash Flash did not fire, compulsory flash suppression
Colour space sRGB
Custom image processing Normal process
Exposure mode Auto exposure
White balance Auto white balance
Scene capture type Standard
Contrast Normal
Saturation Normal
Sharpness Normal

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