File:Lexington Mine headframe (Butte, Montana, USA).jpg
Original file (2,000 × 2,642 pixels, file size: 2.79 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionLexington Mine headframe (Butte, Montana, USA).jpg |
English: The town of Butte, Montana (pronounced “byoot”) is known as the “Richest Hill on Earth” and "The Mining City". The Butte Mining District has produced gold, silver, copper, molybdenum, manganese, and other metals.
The area's bedrock consists of the Butte Quartz Monzonite (a.k.a. Butte Pluton), which is part of the Boulder Batholith. The Butte Quartz Monzonite ("BQM") formed 76.3 million years ago, during the mid-Campanian Stage in the Late Cretaceous. BQM rocks have been intruded and altered by hydrothermal veins containing valuable metallic minerals - principally sulfides. The copper mineralization has been dated to 62-66 million years ago, during the latest Maastrichtian Stage (latest Cretaceous) and Danian Stage (Early Paleocene). In the supergene enrichment zone of the area, the original sulfide mineralogy has been altered. From a brochure on Butte area mines: LEXINGTON MINE 1876-1957 3260 Feet Deep This mine, sold by its initial owner for a team of white horses, eventually produced millions of dollars worth of silver and zinc. Like most of the other mines on the hill, the "Lex" was originally a shallow, open mine or glory hole. As larger amounts of material were removed, a wooden gallows frame was erected to handle the increased load of men and ore. Eventually, it was replaced with a steel headframe transplanted from the Adams mineyard. The Lexington lies within the city limits of Walkerville, Butte's northern neighbor. While the separation between the two cities is hardly discernible, Walkerville taxes on ore were high, while in Butte they were low. They say dynamite solved the problem. A tunnel was blasted from the Lexington down to the vicinity of the Anselmo and ore was removed through the "Butte exit" ! Labor disputes in Butte often erupted into violence. The spotlight on top of this headframe combed the surrounding terrain from dusk till dawn during strikes to foil attempts at sabotage against the company. The metal sheaths around the cages protected scab labor from periodic sniping by desperate strikers. Locality: Lexington Mine, Butte Mining District, northeastern Silver Bow County, southwestern Montana, USA |
Date | |
Source | https://www.flickr.com/photos/47445767@N05/50881938368/ |
Author | James St. John |
Licensing
[edit]- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/50881938368. It was reviewed on 28 January 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
28 January 2021
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:42, 28 January 2021 | 2,000 × 2,642 (2.79 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50881938368/ with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
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 |
---|---|
Camera model | NIKON D70s |
Exposure time | 1/250 sec (0.004) |
F-number | f/7.1 |
ISO speed rating | 400 |
Date and time of data generation | 19:30, 10 August 2010 |
Lens focal length | 105 mm |
Width | 3,008 px |
Height | 2,000 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Elements 18.0 (Macintosh) |
File change date and time | 12:53, 27 January 2021 |
Y and C positioning | Co-sited |
Exposure Program | Not defined |
Exif version | 2.2 |
Date and time of digitizing | 19:30, 10 August 2010 |
Meaning of each component |
|
Image compression mode | 4 |
APEX shutter speed | 7.965784 |
APEX aperture | 5.655638 |
APEX exposure bias | 0 |
Maximum land aperture | 4.9 APEX (f/5.46) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 80 |
DateTimeOriginal subseconds | 80 |
DateTimeDigitized subseconds | 80 |
Supported Flashpix version | 1 |
Color space | sRGB |
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 | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 157 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 200638ad |
Lens used | 18.0-200.0 mm f/3.5-5.6 |
Date metadata was last modified | 07:53, 27 January 2021 |
Unique ID of original document | 5E2615A0D9BC82C54C76F0857B2F4CAF |
IIM version | 24,576 |