The aim of this chapter is to present the K-Ar and Ar-Ar dating techniques in the context of noble gas studies, since there are already several recent texts on K-Ar and ArAr dating (Dickin 1995; McDougall and Harrison 1999). The focus of this section will be aspects of argon transport and storage in the crust, which affect K-Ar and Ar-Ar dating including Ar-loss from minerals by diffusion and A...

He–Pb double dating of detrital zircons is more reliable than conventional U–Pb dating for tracing the source of detritus in sediments and can be used to constrain the percentage of recycled material in sediments. Conventional U–Pb dating can be used to constrain the provenance of sediments if the U–Pb zircon age pattern for potential source regions is known but can only be used to trace the so...

Abstract This study aimed to analyze the Social Representations of adolescents on dating and violence from their social anchors. is a quantitative-qualitative, descriptive-exploratory study, involving 215 public schools located in city João Pessoa - Paraíba, aged between 14 18 (M=16.16; SD=1.26), predominantly female (60.5%). Participants answered Free Word Association Technique (FWAT); Conflic...

Social media have become significant contexts for dating relationships among high school students. These media, which allow for increased visibility of dating partners' information and constant connectivity, may put teens at risk for problematic digital dating behaviors. This study sought to replicate and expand on research with college students to examine the association between attachment ins...

The archaeological karstic infill site of Galería Complex, located within the Atapuerca system (Spain), has produced a large faunal and archaeological record (Homo sp. aff. heidelbergensis fossils and Mode II lithic artefacts) belonging to the Middle Pleistocene. Extended-range luminescence dating techniques, namely post-infrared infrared stimulated luminescence (pIR-IR) dating of K-feldspars a...

Hester, Thomas R. 1973 Chronological ordering of Great Basin prehistory. University of California Archaeological Research Facility, Contributions 17:17-18. Johnson, L., Jr. 1969 Obsidian hydration rate for the Klamath Basin of California and Oregon. Science 1965:1354-56. Katsui, Yoshio, and Tuko Kondo 1964 Dating of stone implements by using hydration layer of obsidian. Department of Geology an...

OBJECTIVE For child protective services (CPS) youth who may have experienced more than one form of maltreatment, the unique contribution of emotional abuse may be over-looked when other forms are more salient and more clearly outside of accepted social norms for parenting. This study considers the unique predictive value of childhood emotional abuse for understanding adolescent post-traumatic s...

OBJECTIVE We conducted a systematic review of the literature to define the evidence for radiologic dating of fractures in children in the context of child protection. CONCLUSION Radiologic dating of fractures is an inexact science. Most radiologists date fractures on the basis of their personal clinical experience, and the literature provides little consistent data to act as a resource. There...