Restren:Stromatolite (Dresser Formation, Paleoarchean, 3.48 Ga; Normay Mine, North Pole Dome, Pilbara Craton, Western Australia) 2 (47748432842).jpg
Restren wreydhek (3,428 × 2,395 piksel, myns an restren: 7.15 MB, eghen MIME: image/jpeg)
Restren dhyworth Wikimedia Commons yw hebma. Yma diskwedhys a-woles derivadow dhyworth y folen deskrifans ena. | Mos dhe folen an restren war Wikimedia Commons |
Berrskrif
DeskrifansStromatolite (Dresser Formation, Paleoarchean, 3.48 Ga; Normay Mine, North Pole Dome, Pilbara Craton, Western Australia) 2 (47748432842).jpg |
Stromatolite from the Precambrian of Australia. (Cranbrook Institute of Science collection, Bloomfield Hills, Michigan, USA) This is a sample from the oldest known definite fossil occurrence on Planet Earth. This is a stromatolite from the Paleoarchean of Western Australia. Stromatolites are large, layered structures built up by mats of cyanobacteria. They vary in appearance, ranging from slightly wrinkled horizontal laminations in sedimentary rocks to low mounds to prominent mounds to columnar structures and other forms. Stromatolites are most common in the Proterozoic fossil record. They are scarce today, but famous modern examples occur at Shark Bay, Western Australia. The oldest known examples are ~3.5 billion years old, from Western Australia - this is a specimen from that occurrence. From exhibit signage: The adjacent specimen is a laminated microbialite commonly referred to as a stromatolite. Microbialites are organo-sedimentary deposits that have accreted as a result of a benthic microbial community trapping and binding detrial sediment and/or forming the locus of mineral precipitation (Burne and Moore, 1987). This specimen comes from strata of the Dresser Formation cropping out along the North Pole Dome in the Pilbara Craton of Western Australia. Its 3.48 billion year age is well constrained by radioisotope dating of interbedded volcanic rocks. Studies of carbon and sulfur isotopes in the strata are also consistent with a biological origin. Recent mapping (Djokic et al., 2017) has revealed that the rocks are not shallow marine as previously interpreted; but, instead are interbedded with geyserite (hot spring silica) and terrestrial sediments consistent with a depositional setting in a volcanic caldera with abundant hot springs and geysers - a suitable setting for the origin of life. Djokic, T., M.J. Van Kranendonk, K.A. Campbell, M.R. Walters, and C.R. Ward. 2017. Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits. Nature Communications 8: 1526. Stratigraphy: Dresser Formation, Paleoarchean, 3.48 Ga Locality: Normay Mine, North Pole Dome, Pilbara Craton, Western Australia See info. at: <a href="https://en.wikipedia.org/wiki/Stromatolite" rel="noreferrer nofollow">en.wikipedia.org/wiki/Stromatolite</a> |
Dedhyans | |
Pennfenten | Stromatolite (Dresser Formation, Paleoarchean, 3.48 Ga; Normay Mine, North Pole Dome, Pilbara Craton, Western Australia) 2 |
Awtour | James St. John |
Leshyans
- Yma'n gwir dhywgh:
- a ranna – a dhasskrifa, lesranna ha treuskorra an ober
- a gemyska – a aswiwa an ober
- Yn-dann an ragselyow a syw:
- askrifans – Res yw dhywgh ri askrifans gwiw, provia kevren dhe'n lecyans, ha meneges mar peu chanjyow gwrys. Hwi a yll gul hemma yn fordh resonus a vynnowgh, mes ny yllir y wul yn fordh a broffo synser an lecyans dh'agas skoodhya po agas devnydh.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/47748432842 (archive). It was reviewed on 5 Kevardhu 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
5 Kevardhu 2019
Items portrayed in this file
depicts Sowsnek
creator Sowsnek
some value
copyright status Sowsnek
copyrighted Sowsnek
copyright license Sowsnek
source of file Sowsnek
file available on the internet Sowsnek
captured with Sowsnek
Canon PowerShot D10 Sowsnek
4 Me 2019
exposure time Sowsnek
0.01666666666666666666 eylen
f-number Sowsnek
9
focal length Sowsnek
8.295 millimetre
ISO speed Sowsnek
80
MIME type Sowsnek
image/jpeg
photograph Sowsnek
Istori an restren
Klyckyewgh war dhedhyans/eur rag gweles an folen dell o an termyn na.
Dedhyans/Eur | Skeusennik | Mynsow | Devnydhyer | Kampol | |
---|---|---|---|---|---|
a-lemmyn | 06:18, 5 Kevardhu 2019 | 3,428 × 2,395 (7.15 MB) | Ser Amantio di Nicolao | Transferred from Flickr via #flickr2commons |
Devnydh an restren
Yma an folen a syw owth usya an restren ma:
Devnydh ollvysel an restren
Yma an wikis erel a syw ow tevnydhya an restren ma:
- Devnydh war fr.wikipedia.org
Metadata
An restren ma a's teves kedhlow keworransel, dres lycklod keworrys dhyworth an kamera bysyel po an skanyer devnydhys rag hy gwruthyl po hy bysya. Mars yw chanjys an restren dhyworth hy studh gwredhek, possybyl yw na veu nebes manylyon nowedhys.
Camera manufacturer | Canon |
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ISO speed rating | 80 |
Date and time of data generation | 09:27, 4 Me 2019 |
Lens focal length | 8.295 mm |
Width | 4,000 px |
Height | 3,000 px |
Bits per component |
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Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop Elements 16.0 (Macintosh) |
File change date and time | 21:44, 7 Me 2019 |
Y and C positioning | Co-sited |
Exif version | 2.21 |
Date and time of digitizing | 09:27, 4 Me 2019 |
Meaning of each component |
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APEX shutter speed | 5.90625 |
APEX aperture | 6.34375 |
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Supported Flashpix version | 1 |
Color space | sRGB |
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File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Portrait |
Lens used | 6.2-18.6 mm |
Date metadata was last modified | 17:44, 7 Me 2019 |
Unique ID of original document | 0A668DB2C309FC8C7F409444A407D099 |