File:Rainbow Basin Natural Area - 50702865143.jpg
![File:Rainbow Basin Natural Area - 50702865143.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/Rainbow_Basin_Natural_Area_-_50702865143.jpg/800px-Rainbow_Basin_Natural_Area_-_50702865143.jpg?20210125211100)
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Summary
[edit]DescriptionRainbow Basin Natural Area - 50702865143.jpg |
English: Rainbow Basin is a geological formation in the Calico Peaks range, located approximately 8 miles (13 km) north of Barstow in the Mojave Desert in San Bernardino County, California.
The Rainbow Basin has been designated a National Natural Landmark and is in the Bureau of Land Management managed Rainbow Basin Natural Area. Rainbow Basin is a mixture of private and public land, but it is managed by the Bureau of Land Management. It is accessible to the public via Irwin Road from Barstow to an unpaved loop road through the colorful basin. The basin is notable for: the fantastic and beautiful shapes of its rock formations: its fossil beds, which have provided scientists with valuable information about life during the middle Miocene epoch, between 12 and 16 million years ago; and to the northeast the Calico Early Man Site. Underneath Rainbow Basin is the massive batholith that lies below much of the western Mojave. Made from a type of rock called quartz monzonite, this batholith dates to either the Cretaceous, or possibly the late Jurassic period. Early in the Cenozoic Era this batholith was exposed in the area surrounding Rainbow Basin and bent downward as it underwent compression, to form a basin. Sediments deposited in this basin became the sedimentary rocks that are most visible in Rainbow Basin today. Further compression, uplift, and finally extension left these sedimentary formations deeply folded, the most prominent fold being the Barstow Syncline. These same stresses also produced several faults in the Rainbow Basin area. The thick sedimentary layers can be divided into three distinct formations. The lowest is called the Jackhammer Formation, and it is composed of layers of sandstone, siltstone, limestone, and conglomerate, all probably dating to the early Miocene Epoch. Above this is the Pickhandle Formation. The sediments making up this formation are mostly of volcanic origin – tuff, rhyolite and andesite, indicating that they were laid down during a period of active volcanism. That time was probably during the early Miocene. The highest of the three formations is the Barstow Formation, which is made up of layers of conglomerate, limestone, sandstone, and shale. This formation dates to the middle to late Miocene and it contains one of the largest Cenozoic fossil assemblages in North America. Most of the sediment that makes up the layers in this formation was stream-laid, but there is a white layer of rhyolitic tuff (sometimes called marker tuff) near the top. Finally, on top of everything else, is a relatively thin layer of fanglomerate (alluvial fan deposits) laid down during the late Pleistocene. Differential erosion of rocks of different hardness finished the job of sculpting the formations into the fantastic shapes that can be seen in Rainbow Basin today. Source: Wikipedia en.wikipedia.org/wiki/Rainbow_Basin |
Date | |
Source | https://www.flickr.com/photos/21874566@N07/50702865143/ |
Author | RuggyBearLA |
Camera location | 35° 01′ 58.74″ N, 117° 02′ 14.4″ W ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Licensing
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This image was originally posted to Flickr by RuggyBearLA at https://flickr.com/photos/21874566@N07/50702865143. It was reviewed on 25 January 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
25 January 2021
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:11, 25 January 2021 | ![]() | 3,000 × 2,000 (6.99 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by RuggyBearLA from https://www.flickr.com/photos/21874566@N07/50702865143/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D7100 |
Author | RuggyBearLA Photography |
Copyright holder |
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Exposure time | 1/160 sec (0.00625) |
F-number | f/16 |
ISO speed rating | 100 |
Date and time of data generation | 14:26, 12 September 2020 |
User comments | RuggyBearLA Photography |
Latitude | 35° 1′ 58.73″ N |
Longitude | 117° 2′ 14.4″ W |
Altitude | 976 meters above sea level |
City shown | Barstow |
Width | 6,000 px |
Height | 4,000 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop 22.0 (Windows) |
File change date and time | 22:29, 22 October 2020 |
Exposure Program | Manual |
Exif version | 2.31 |
Date and time of digitizing | 14:26, 12 September 2020 |
APEX shutter speed | 7.321928 |
APEX aperture | 8 |
APEX exposure bias | 0 |
Maximum land aperture | 0 APEX (f/1) |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 90 |
DateTimeDigitized subseconds | 90 |
Color space | sRGB |
Focal plane X resolution | 2,558.641204834 |
Focal plane Y resolution | 2,558.641204834 |
Focal plane resolution unit | 3 |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS time (atomic clock) | 21:26 |
Satellites used for measurement | 09 |
Geodetic survey data used | WGS84 |
GPS date | 12 September 2020 |
GPS tag version | 0.0.3.2 |
Serial number of camera | 2570447 |
Lens used | 0.0 mm f/0.0 |
Date metadata was last modified | 15:29, 22 October 2020 |
Rating (out of 5) | 1 |
Unique ID of original document | C7DA0855F5F99356FF05327C5C85BDA9 |
Province or state shown | California |
Country shown | United States |
Code for country shown | US |
IIM version | 4 |