Chicxulub crater: a possible Cretaceous/Tertiary boundary impact crater on the Yucatan Peninsula, Mexico. (Record no. 51989)
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| fixed length control field | 01848nam a2200253Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250625160218.0 |
| 040 ## - CATALOGING SOURCE | |
| Transcribing agency | CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) | |
| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) | B-17828 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT | |
| Title | Chicxulub crater: a possible Cretaceous/Tertiary boundary impact crater on the Yucatan Peninsula, Mexico. |
| 490 0# - SERIES STATEMENT | |
| Volume/sequential designation | Geology, 19(9), p.867-871, 1991 |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | We suggest that a buried 180-km-diameter circular structure on the Yucata?n Peninsula, Mexico, is an impact crater. Its size and shape are revealed by magnetic and gravity-field anomalies, as well as by oil wells drilled inside and near the structure. The stratigraphy of the crater includes a sequence of andesitic igneous rocks and glass interbedded with, and overlain by, breccias that contain evidence of shock metamorphism. The andesitic rocks have chemical and isotopic compositions similar to those of tektites found in Cretaceous/Tertiary (K/T)ejecta. A 90-m-thick K/T boundary breccia, also containing evidence of shock metamorphism, is present 50 km outside the crater's edge. This breccia probably represents the crater's ejecta blanket. The age of the crater is not precisely known, but a K/T boundary age is indicated. Because the crater is in a thick carbonate sequence, shock-produced CO2 from the impact may have caused a severe greenhouse warming. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | TERTIARY BOUNDARY IMPACT CRATER ON THE YUCATA?N PENINSULA, MEXICO |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hildebrand, A.R. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Penfield, G.T. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Kring, D. A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Pilkington, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Camargo Z, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Jacobsen, S. B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Boynton, W. V. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="https://drive.google.com/file/d/1vvpvFGw2ZJgg8V9ymgnlLDmDtF5Wb1IF/view?usp=drivesdk">https://drive.google.com/file/d/1vvpvFGw2ZJgg8V9ymgnlLDmDtF5Wb1IF/view?usp=drivesdk</a> |
| Public note | Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Clasificación local |
| Koha item type | Documentos solicitados |
| Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clasificación local | Ref1 | CICY | CICY | Documento préstamo interbibliotecario | 25.06.2025 | B-17828 | 25.06.2025 | 25.06.2025 | Documentos solicitados |