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  • The iron and steel industry of Pennsylvania : spatial changes and economic evolution
  • Acier ; Déclin industriel ; Etats-Unis ; Géographie de l'Amérique ; Localisation industrielle ; Pennsylvania ; Restructuration économique ; Sidérurgie
  • In the decade 1978-1987, the Pennsylvania steel industry shrunk to less than half its former production. - (DWG)
  • Reversed-polarity glacial sediments and revised glacial chronology, West Branch Susquehana River Valley, central Pennsylvania
  • Etats-Unis ; Glaciaire ; Glaciation ; Glaciolacustre ; Géochronologie ; Paléogéographie ; Paléomagnétisme ; Pennsylvania ; Quaternaire ; Sédiment lacustre
  • Geochronology ; Glacial features ; Glaciation ; Glaciolacustrine ; Lacustrine sediment ; Palaeogeography ; Palaeomagnetism ; Pennsylvania ; Quaternary ; United States of America
  • The reversed remanent magnetic polarity of glacial and glaciolacustrine sediments at Antes Fort allows for revision of the chronology of pre-Wisconsinan glaciation in central Pennsylvania.
  • Erosion in the Juniata River drainage basin, Pennsylvania in Appalachian geomorphology.
  • Appalachian Mountains ; Bassin-versant ; Capacité de charge ; Charge en suspension ; Erosion fluviatile ; Etats-Unis ; Géographie physique ; Hydrodynamique ; Pennsylvania ; Vitesse d'érosion
  • rate for the Juniata River drainage basin in Pennsylvania.
  • Etats-Unis ; Géographie rurale ; Industrialisation ; Industrie pétrolière ; Paysage ; Pennsylvania ; Pétrole
  • Industrialization ; Landscape ; Oil ; Oil industry ; Pennsylvania ; Rural geography ; United States
  • America's earliest oil discovery dates from 1859 in Titusville, Pennsylvania. The A. reconstructs the early landscape changes wrought by petroleum extraction there. - (DWG)
  • SOUTHEASTERN PENNSYLVANIA AND CENTRAL WISCONSIN BARNS: EXAMPLES OF INDEPENDENT PARALLEL DEVELOPMENT?
  • BATIMENT AGRICOLE ; ETATS-UNIS ; Géographie de l'Amérique ; HABITAT RURAL ; PENNSYLVANIA ; PEUPLEMENT RURAL ; WISCONSIN
  • The anthracite region of northeastern Pennsylvania : an economy in transition
  • Charbon ; Economie locale ; Etats-Unis ; Géographie de l'Amérique ; Mine ; Pennsylvania ; Restructuration économique ; Tertiarisation
  • Environment and change in the Ridge and Valley region of Pennsylvania
  • Economie régionale ; Environnement ; Etats-Unis ; Géographie de l'Amérique ; Géographie historique ; Mine ; Pennsylvania ; Ressource naturelle ; Ridge and Valley region
  • Relationship between alluvial soils and flooding in the piedmont lowland of south eastern Pennsylvania
  • Crue ; Etats-Unis ; Extension spatiale ; Géographie physique ; Inondation ; Pennsylvania ; Piedmont ; Plaine d'inondation ; Prévision ; Sol ; Sol alluvial
  • Stratigraphy and magnetic polarity of the high terrace remnants in the upper Ohio and Monongahela Rivers in West Virginia, Pennsylvania, and Ohio
  • Etats-Unis ; Glaciaire ; Géographie de l'Amérique ; Lac glaciaire ; Ohio ; Paléomagnétisme ; Pennsylvania ; Quaternaire ; Stratigraphie ; Terrasse fluviatile ; Virginia
  • Advertisements for American selves : nineteenth-century Pennsylvania county atlases
  • Agriculture ; Atlas ; Etats-Unis ; Géographie historique ; Géographie rurale ; Histoire de la géographie ; Paysage culturel ; Pennsylvania ; Siècle 19
  • Power networks and early Chinese immigrants in Pennsylvania
  • Association ; Chinois ; Etats-Unis ; Géographie historique ; Immigration ; Intégration sociale ; Migration internationale ; Pennsylvania ; Réseau de sociabilité
  • Association ; Chinese ; Historical geography ; Immigration ; International migration ; Pennsylvania ; Social integration ; Social network ; United States of America
  • Early Chinese immigrants in Pennsylvania were influenced by networks ranging from the global economic system to friendship with colleagues working in the same cities. Despite encountering poverty, hostility and institutional bias, Chinese were able
  • Spatial patterns and causes of marble tombstone weathering in western Pennsylvania
  • Etats-Unis ; Marbre ; Météorisation ; Pennsylvania ; Pierre tombale ; Pluie acide ; Pollution ; Pollution atmosphérique ; Pollution industrielle ; Précipitation
  • Acid rain ; Atmospheric pollution ; Industrial pollution ; Pennsylvania ; Pollution ; Precipitation ; United States of America ; Weathering
  • The aim of this study is to investigate the regional spatial variation of Vermont marble tombstone weathering in southwestern Pennsylvania in relation to historic industrial SO2 air pollution exposure. Marble tombstone weathering is measured
  • The Goodlett-Denny mound: a glimpse at 45 years of Pennsylvania treethrow mound evolution with implications for mass wasting
  • Agroforesterie ; Déracinement ; Ecologie ; Erosion des sols ; Etats-Unis ; Microrelief ; Pennsylvania ; Photo-interprétation ; Sol ; Vitesse d'érosion
  • Agroforestry ; Ecology ; Erosion rate ; Microrelief ; Pennsylvania ; Photointerpretation ; Soil ; Soil erosion ; United States of America
  • The purpose of this study is to document form and volume changes that have occurred at a mound site in Potter County, Pennsylvania (PA), over 45 years as the rootplate of the downed tree disintegrated, the mound formed and underwent erosion.
  • Temporal characteristics of Pennsylvania snowfall, 1950-1951 through 1989-1990
  • Analyse en composantes principales ; Anomalie climatique ; Climatologie ; Etats-Unis ; Neige ; Pennsylvania ; Précipitation ; Variabilité climatique ; Variabilité saisonnière ; Variation spatiale
  • Climatic anomaly ; Climatic variability ; Climatology ; Pennsylvania ; Precipitation ; Principal components analysis ; Seasonal variability ; Snow ; Spatial variation ; United States of America
  • The goals of this research were to analyze and depict the spatial patterns and temporal changes in Pennsylvania's snowfall over a 40-year period, from 1950-1951 through 1989-1990. 26 sites were selected. Overall, the state eperienced a significant
  • A model of late Quaternary landscape development in the Delaware Valley, New Jersey and Pennsylvania
  • This paper proposes a chronologic model for late Quaternary nonglacial events, and relates them to glacial episodes in the Delaware Valley of eastern Pennsylvania and northwestern New Jersey.
  • Public-private institutions and advanced technology development in Southwestern Pennsylvania in Public-private partnerships in Pittsburgh.
  • Développement régional ; Etats-Unis ; Géographie de l'Amérique ; Haute technologie ; Pennsylvania ; Technopole
  • Rivers and valleys of Pennsylvania, revisited in Appalachian geomorphology.
  • Concept ; Cours d'eau ; Cycle d'érosion ; Etats-Unis ; Fluviatile ; Géographie physique ; Géomorphogenèse ; Pennsylvania ; Pénéplaine ; Réseau de drainage ; Vallée
  • Learning to the suburban : the production of community in Westwood Hills, Pennsylvania, 1952-1958
  • Années 1950 ; Banlieue ; Classe ouvrière ; Communauté ; Etats-Unis ; Femme ; Géographie historique ; Pennsylvania ; Pittsburgh
  • Community ; Historical geography ; Pennsylvania ; Suburbs ; The 1950's ; United States of America ; Woman ; Working class
  • Beharrung und Wandel bei den Amischen in Pennsylvania
  • Agriculture ; Culturel ; Etats-Unis ; Minorité ; Minorité religieuse ; Mode de vie ; Pennsylvania ; Société
  • Cultural geography ; Farming;Agriculture ; Minority ; Pennsylvania ; Religious minority ; Society ; United States ; Way of life
  • Tracking ozone: air-mass trajectories and pollutant source regions influencing ozone in Pennsylvania forests
  • Circulation atmosphérique ; Etats-Unis ; Forêt ; Masse d'air ; Ozone ; Pennsylvania ; Pollution ; Type de temps ; Variabilité saisonnière
  • Air mass ; Atmospheric circulation ; Forest ; Ozone ; Pennsylvania ; Pollution ; Seasonal variability ; United States of America ; Weather type