First Evidence of Pleistocene Archaeology on the Neyshabur Plain and its Role in Reconstructing the Dispersal of Hominins on the Northeastern Iranian Plateau

The northeastern Iranian Plateau is considered a leading region in Paleolithic studies. The history of Paleolithic research in this region dates back to the mid-20th century. However, unlike the western and, to some extent, the central part of the Iranian Plateau, only a handful of sites have been identifi ed in the northeastern part. Field studies conducted on the Neyshabur plain have provided some of the only Paleolithic evidence at four locations in the foothills of the Binalud Mountains: Dar Behesht, Mushan Tappeh, Ali Abad, and Qezel Tappeh. Our research aims to assess this evidence, provide a revised typology of Pleistocene artifacts from the Neyshabur plain, and also study the role of these and other fi nds in the area and analyze their signifi cance in terms of the dispersal of Pleistocene hominin populations. We propose two main corridors on the northeastern Iranian Plateau assumed to have been infl uential in the dispersal of human ancestors.

Occurrence of heatwave in Korea by the displacement of South Asian high

The South Asian high (SAH) index was defined using the 200 hPa geopotential height for 1973–2019. Of the movements of the SAH center in the north–south, east–west, northwest-southeast, and southwest-northeast directions, the movements in the northwest-southeast direction showed the highest positive correlation with heatwave days (HWDs) in South Korea. Thirteen years with the highest values in the northwestward shift of the SAH (positive SAH years) and 13 years with the highest values in the southeastward shift of the SAH (negative SAH years) were selected from a time series of SAH indices from which the linear trend was removed, and the differences between these two groups were analyzed. An analysis of vertical meridional circulation averaged along 120°–130° E showed that in the latitude zones containing Korea, anomalous downward flows with anomalous high pressures formed in the entire troposphere and coincided with a positive anomaly of air temperature and specific humidity. An analysis of stream flows and geopotential heights showed that in the positive SAH years, anomalous anticyclones developed in Korea, the North Pacific, North America, Western Europe, and the Iranian Plateau. These anticyclones had the wavenumber-5 pattern and showed more distinct barotropic vertical structures at higher altitudes, which resembled the circumglobal teleconnection (CGT) pattern. The maintenance of CGT depends on the interaction between the CGT circulation and the Indian summer monsoon (ISM), which has a major influence on the mid-latitude atmosphere. Strengthening of the ISM results in the formation of upper-level anomalous anticyclones in the northwestern Iranian Plateau and produces continuous downstream cells along the waveguide due to the Rossby wave dispersion. When diabatic heating by Indian summer monsoon precipitation is strengthened, the SAH is strengthened to the northwest of India, and a positive CGT pattern is formed. As a result, anomalous anticyclones formed in all layers of the Korean troposphere, resulting in heatwaves, tropical nights, and droughts exacerbated in South Korea.

Classification of Zagros earthquakes based on focal mechanism

The Zagros suture zone is seismically active region in Iranian plateau. This region is of high importance in terms of seismicity, since it is a vast and populated region and in recent years the earthquakes with high intensities have frequently occurred and have caused extensive destruction and heavy human loss. The study of the focal mechanism is very important in understanding the seismotectonic characteristics. Focal mechanisms of Zagros were collected over a period of 20 years and they were classified by FMC software. Seven groups were considered for the type of faulting and Zagros was divided into three zones. For each zone, the frequency percentage of each group of faults was determined. The most of faulting are of the reverse and compression type with the strike-slip component. Finally, the role of nodal plane selection in determining the type of faulting was discussed and it was found that the selection of each nodal plane in determining the type of faulting has the same result.

Ancient Iran

One major challenge of the study of ancient Iran is that it does not exist in Western academia as a discrete field of study. Prehistory, for example, which ends in the 3rd millennium in Elam but persists into the 1st millennium bce elsewhere on the Iranian plateau, has been studied primarily by anthropologists, the Iron Age by Assyriologists, the Parthians by classical archaeologists, and the Sasanians by scholars of Iranian studies. As a result, ancient Iran does not belong to any individual academic discipline, and in the context of Near Eastern studies, perhaps its most obvious home, it has been treated largely as an ancillary field. Thus Iran has seen less archaeological fieldwork, including excavation, regional survey, and study of standing architectural remains, than other parts of the Near East. This problem has been further compounded by the 1979 Iranian Revolution, which effectively barred foreign archaeologists from the country and severed contacts between them and their Iranian colleagues. This situation has improved in recent decades, but there are nevertheless relatively few scholars working on ancient Iran and comparatively little scholarship on its architecture, especially compared to Mesopotamia, Anatolia, Egypt, or the Mediterranean. To study Iranian architecture, therefore, it is necessary to extract relevant examples from archaeological reports, both preliminary and final. This is especially true for prehistoric periods before the advent of stone masonry, but even for the Sasanian period most architectural scholarship documents individual sites or buildings. The titles listed here thus provide only the raw material for studying ancient Iranian architecture. This bibliography is dedicated to the memory of David Stronach (b. 1931–d. 2020), a prolific and consummate archaeologist and scholar whose contributions to the study of Iranian architecture have been enormous.

The Parthians’ Failed Vassalage of Syria: The Shortsighted Western Policy of Phraates Ii and the Second Reign of Demetrius Ii (129–125 BCE)

SummaryBy 128 BCE the Parthians had emerged temporarily as the de facto leading power throughout the Hellenistic Middle East. Their defeat of Demetrius II’s invasion of Mesopotamia in 138 BCE had furthered their heated rivalry with the Seleucids; however, their destruction of Antiochus VII’s invasion of Mesopotamia and Media in 129 BCE finally ended the threat of the Seleucids to their eastern lands. For the first time in their history, the Parthians considered expanding their hegemony over Armenia, Syria, and the regions along the Eastern Mediterranean coast, thus firmly establishing their unrivaled hegemony. Yet any hopes of immediately occupying these regions quickly vanished because of calamities and miscalculations in the early 120s BCE. Although nomadic incursions ravaged the Iranian plateau in the east throughout the 120s BCE, in the west Phraates II’s sudden release of Demetrius to contest the Seleucid throne in Syria before the death of Antiochus became a political debacle that hindered Parthian influence in the region. Despite the arguments of recent scholarship, Phraates’ decision to release Demetrius was shortsighted and haphazard, and Demetrius never served in Syria as a Parthian vassal. This article is a reevaluation of the western policy of the Parthians in the early 120s BCE and the actions of Demetrius during his second reign concerning the Parthians.