File:1-s2.0-S0016703719303801-main.pdf
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
Size of this JPG preview of this PDF file: 450 × 600 pixels. Other resolutions: 180 × 240 pixels | 360 × 480 pixels | 576 × 768 pixels | 1,239 × 1,652 pixels.
Original file (1,239 × 1,652 pixels, file size: 1.61 MB, MIME type: application/pdf, 9 pages)
File information
Structured data
Captions
Summary[edit]
Description1-s2.0-S0016703719303801-main.pdf |
English: Cyanide plays a critical role in origin of life hypotheses that have received strong experimental support from cyanide-driven synthesis of amino acids, nucleotides, and lipid precursors. However, relatively high cyanide concentrations are needed. Such cyanide could have been supplied by reaction networks in which hydrogen cyanide in early Earth’s atmosphere reacted with iron to form ferrocyanide salts, followed by thermal decomposition of ferrocyanide salts to cyanide. Using an aqueous model supported by new experimental data, we show that sodium ferrocyanide salts precipitate in closed-basin, alkaline lakes over a wide range of plausible early Earth conditions. Such lakes were likely common on the early Earth because of chemical weathering of mafic or ultramafic rocks and evaporative concentration. Subsequent thermal decomposition of sedimentary sodium ferrocyanide yields sodium cyanide (NaCN), which dissolves in water to form NaCN-rich solutions. Thus, geochemical considerations newly identify a particular geological setting and NaCN feedstock nucleophile for prebiotic chemistry. |
Date | |
Source |
https://www.sciencedirect.com/science/article/pii/S0016703719303801 https://doi.org/10.1016/j.gca.2019.06.031 |
Author | J.D.Toner, D.C.Catling |
Licensing[edit]
This file is licensed under the Creative Commons Attribution 4.0 International license.
- 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.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 09:28, 2 January 2020 | 1,239 × 1,652, 9 pages (1.61 MB) | Pamputt (talk | contribs) | User created page 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.
Short title |
|
---|---|
Author |
|
Image title |
|
Publisher | The Authors |
Keywords |
|
Software used | Elsevier |
File change date and time | 22:56, 17 July 2019 |
Date and time of digitizing | 22:55, 17 July 2019 |
Date metadata was last modified | 22:56, 17 July 2019 |
Copyright status | Copyrighted |
Identifier | doi:10.1016/j.gca.2019.06.031 |
Conversion program | Acrobat Distiller 8.0.0 (Windows) |
Encrypted | no |
Page size | 595.276 x 793.701 pts |
Version of PDF format | 1.7 |