Database for USGS Map I-1970 - Map showing the thickness and character of Quaternary sediments in the glaciated United States east of the Rocky Mountains
Notice bibliographique
Résumé
U.S. Geological Survey (USGS) Miscellaneous Investigations Series Map I-1970 is a 1:1,000,000-scale map of Quaternary deposits (including both glacial and glacially related sediments, and any overlying Holocene sediments) compiled for the glaciated area of the United States east of the Rocky Mountains (that is, the area covered by the Laurentide ice sheets). Parts of southern Ontario, areas beneath the Great Lakes, and parts of the submerged eastern seaboard also are included on the map. The map has four principal geologic components that together provide the first regional three-dimensional view of these deposits. These components are: (1) the surface distribution of Quaternary sediments; (2) the total thickness of Quaternary sediments; (3) significant thin, surficial Quaternary units (“veneers” of sediment overlying the unit generally mapped for a given area); and (4) significant buried Quaternary sediments. The map is a regional synthesis and interpretation of available geologic data derived from about 850 sources of information. It was published in four sheets, as Map I-1970-A--D (Soller, 1993a, 1994, 1997, and 1998). It also was simplified and printed at the reduced scale of 1:3,500,000 (Soller, 1993b, 2001). Text and references to support the map are provided by Soller (1992). The Geographic Information System (GIS) data from which the map was printed were released on CDROM (Soller and Packard, 1998). To allow this large map to be printed, new digital methods were developed (Soller and others, 1990). The GIS and digital printing technology of the early 1990s required that the map be divided into manageable pieces. Therefore, the mosaic of 23 4-degree by 6-degree International Map of the World Series quadrangles, upon which the map was compiled, was taken apart, and each quadrangle was processed separately. Because the file size was quite large for a database of the entire map area, GIS files in the first version of this database (Soller and Packard, 1998) were provided by quadrangle rather than for the entire area. For each of these quadrangles, the geologic information was supported by a rudimentary vector base map adapted from existing paper and digital bases. With gradual advances in GIS technology, and owing to continued user requests for the map database, it became incumbent on us to reprocess the database in order to ensure its usefulness in a modern GIS. Data Series 656 contains the updated database, organized in ten feature classes in an ESRI Geodatabase. Reprocessing a published database for these and other reasons will, in time, become necessary for other agency publications. The experience gained in updating this map for use in a modern GIS may inform agencies as they develop plans to prioritize older publications in need of updating and may help agencies in estimating the resources necessary to address this important responsibility.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,001 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».