Hydrogeological settings of a volcanic island (San Cristóbal, Galapagos) from joint interpretation of airborne electromagnetics and geomorphological observations. (Registro nro. 13089)
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| fixed length control field | 02023nab a22002537a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EC-PaCDF |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20171127093831.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170727t20122012xxu|||||||||||||||||eng|d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EC-PaCDF |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Edition number | 21 |
| Classification number | 551.4 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pryet, A. |
| 245 10 - TITLE STATEMENT | |
| Title | Hydrogeological settings of a volcanic island (San Cristóbal, Galapagos) from joint interpretation of airborne electromagnetics and geomorphological observations. |
| 520 0# - SUMMARY, ETC. | |
| Summary, etc. | Many volcanic islands face freshwater stress and the situation may worsen with climate change and sea level rise. In this context, an optimum management of freshwater resources becomes crucial, but is often impeded by the lack of data. With the aim of investigating the hydrogeological settings of southern San Cristóbal Island (Galapagos), we conducted a helicopter-borne, transient electromagnetic survey with the SkyTEM system. It provided unprecedented insights into the 3-D resistivity structure of this extinct basaltic shield. Combined with remote sensing and fieldwork, it allowed the definition of the first hydrogeological conceptual model of the island. Springs are fed by a series of perched aquifers overlying a regional basal aquifer subject to seawater intrusion. Dykes, evidenced by alignments of eruptive cones at the surface, correspond to sharp sub-vertical contrasts in resistivity in the subsurface, and impound groundwater in a summit channel. Combined with geomorphological observations, airborne electromagnetics are shown to be a useful for hydrogeological exploratory studies in complex, poorly known environments. They allow optimal development of land-based geophysical surveys and drilling campaigns. |
| 546 ## - LANGUAGE NOTE | |
| Language note | English |
| 550 ## - ISSUING BODY NOTE | |
| CDF Contribution no. | |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | d’Ozouville, N. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Violette, S. |
| 9 (RLIN) | 1610 |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Deffontaines, B. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Auken, E. |
| 773 0# - HOST ITEM ENTRY | |
| Related parts | Vol. 16, (Dec 2012), p 4571–4579. |
| Title | Hydrol. Earth Syst. Sci. |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | http://dx.doi.org/10.5194/hess-16-4571-2012 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Artículo |
| Withdrawn status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Home library | Current library | Shelving location | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | Galápagos | Corley Smith Library | Corley Smith Library | Artículos | 27/07/2017 | 551.4 PRY 2012 | 2020-0573 | 27/07/2017 | 27/07/2017 | Artículo | ||||
| Dewey Decimal Classification | Galápagos | Corley Smith Library | Corley Smith Library | Colección PDF | 27/07/2017 | 551.4 PRY 2012 | 2021-1308 | 27/07/2017 | 27/07/2017 | Documento electrónico |