File:Walter Alvarez and Alessandro Montanari at K Pg (KT) Boundary at Bottaccione Gorge near Gubbio Italy.jpg
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![File:Walter Alvarez and Alessandro Montanari at K Pg (KT) Boundary at Bottaccione Gorge near Gubbio Italy.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Walter_Alvarez_and_Alessandro_Montanari_at_K_Pg_%28KT%29_Boundary_at_Bottaccione_Gorge_near_Gubbio_Italy.jpg/800px-Walter_Alvarez_and_Alessandro_Montanari_at_K_Pg_%28KT%29_Boundary_at_Bottaccione_Gorge_near_Gubbio_Italy.jpg?20200115201729)
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Geologist Walter Alvarez at the original site where he discovered the dinosaur extinction evidence.
Summary
[edit]DescriptionWalter Alvarez and Alessandro Montanari at K Pg (KT) Boundary at Bottaccione Gorge near Gubbio Italy.jpg |
English: Geologist Walter Alvarez with his wife Milly Alvarez and then graduate student Alessandro Montanari (right) and his wife Paula Metallo (left) at the original site where Walter Alvarez discovered the evidence for the dinosaur extinction. The site is at the K/Pg (KT) boundary in the Bottaccione Gorge near Gubbio Italy. |
Date | |
Source | Own work |
Author | Orangeboxes2 |
Camera location | 43° 21′ 56.18″ N, 12° 34′ 57.46″ E ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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current | 20:17, 15 January 2020 | ![]() | 4,000 × 3,000 (3.85 MB) | Orangeboxes2 (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A3100 IS |
Exposure time | 1/500 sec (0.002) |
F-number | f/2.7 |
ISO speed rating | 200 |
Date and time of data generation | 23:32, 15 August 2010 |
Lens focal length | 6.2 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 23:32, 15 August 2010 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 23:32, 15 August 2010 |
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Image compression mode | 3 |
APEX shutter speed | 8.96875 |
APEX aperture | 2.875 |
APEX exposure bias | 0 |
Maximum land aperture | 2.875 APEX (f/2.71) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 16,393.442622951 |
Focal plane Y resolution | 16,393.442622951 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Rating (out of 5) | 0 |