DOI: 10.5281/zenodo.18652811
title: East Asian Prehistoric Human-Face Jade Form 04 (EANJ_FACE_04):
High-Resolution Digital Documentation of Morphology, Perforations, Surface Evolution, and Tool Traces

description: 1. Core Statement

1.1 This record contains high-resolution original visual data of a human-face–shaped jade object (Form ID: EANJ_FACE_04).

1.2 This dataset serves as the foundational research base of the specimen’s digital archiving project, providing high-fidelity visual evidence to support morphological analysis, traceology, and materials science–related research.

1.3 The digital record of this object forms part of a continuously expanding data collection intended to provide a citable foundation for future cross-object comparative research. At this stage, no cross-sample comparative interpretation is undertaken.

 

2. Access and Usage Instructions

2.1 Access Restriction:For reasons of data security and academic compliance, the high-resolution original files of this dataset are set to restricted access.

2.2 Application Requirements:Applicants must submit a clearly defined research purpose and institutional affiliation through the Zenodo platform.

2.3 Usage Restrictions:This dataset may be used exclusively for academic research, visual documentation, and comparative analysis. Without explicit authorization from the dataset publisher, any form of commercial use, non-academic dissemination, or reproduction and use beyond the scope of academic comparison is strictly prohibited.

 

3. Dataset Composition

3.1 Panoramic Documentation:High-resolution frontal and reverse photographs documenting the object’s overall proportions and geometric structure.

3.2 Measurement Reference:Images including metric scales for quantitative analysis.



Length: 4.4 cm

Width: 3.2 cm

Thickness: 2.2 cm

Weight: 46 g


3.3 Microscopic Evidence:High-magnification macro images documenting perforation forms, micro-weathering features, and observable tool traces.

 

4. Object Photographic Inventory

This dataset includes seven high-resolution images, as detailed below:



Frontal view: documenting facial configuration features and overall proportionsEANJ_FACE_04_FRONT

Reverse view: showing rear outline morphology and perforation openingsEANJ_FACE_04_REVERSE

Scale reference view: including metric scale for dimensional referenceEANJ_FACE_04_WITH_SCALE

Surface macro photograph: documenting localized weathering features on the facial surfaceEANJ_FACE_04_MIC_ALTERATION

Perforation macro photograph (right hole): showing one element of the “cow-nose” double-hole structureEANJ_FACE_04_MIC_ONP_R

Perforation macro photograph (left hole): showing one element of the “cow-nose” double-hole structureEANJ_FACE_04_MIC_ONP_L


 

5. Observed Morphological and Structural Features

5.1 Based on frontal and reverse image records, the object exhibits a volumetric form that is broader at the top and gradually narrows toward the base. The overall outline shows continuous axial convergence along the vertical axis, with no clearly observable stepped transitions.

5.2 The facial configuration is rendered in a highly simplified manner. The eyes are expressed as symmetrical arcuate recessed grooves, with a more pronounced upper eye margin and continuous eye boundaries. The nose is positioned along the central axis and formed as a continuous protruding mass; the nasal tip appears rounded, with no clearly differentiated nasal wings. The mouth is represented by a shallow horizontal recessed groove, without differentiation between upper and lower lips.

5.3 On the upper portion of the reverse side, a pair of parallel perforations forming a double-hole (“cow-nose”) configuration is visible. The perforation openings display regular outlines with smoothly transitioned edges. Depositional residues are observable within the perforation channels.

5.4 The above descriptions are strictly based on morphological and structural features directly observable in the images and do not involve any interpretations related to manufacturing techniques, function, chronology, or cultural attribution.

 

6. Limitations, Observational Constraints, and Open Questions

6.1 Observational Constraints



Certain surface features are partially obscured by natural deposits or weathering, limiting the observation of micro-traces.

The object exhibits a vertically narrowing three-dimensional form, with ocular features transitioning from incised lines to relief modeling, posing challenges for planar photographic documentation.

The morphological complexity of the object presents challenges for standard measurement protocols, requiring adapted quantitative approaches.

Depositional material remains within the reverse-side perforation channels, restricting observation of potential tool-related micro-traces.


These constraints are documented to support transparent evaluation and encourage methodological refinement.

6.2 Open Questions

The following aspects may require independent quantitative assessment or methodological development:



Whether the object’s dimensions and overall morphology fall toward the margins of documented sample distributions.

The mechanisms and conditions underlying irregular surface erosion and pitting.

Comparative relationships between the object’s ocular, nasal, and oral forms and those within known sample sequences.

The typological position of this volumetric form within established sample series.


The above points are presented solely as open research directions and do not constitute any conclusions.

 

7. Imaging and Processing

7.1 All images were captured in RAW format using a full-frame camera with a 90 mm macro lens and converted to JPEG files (approximately 42 megapixels per image), with no localized modifications.

7.2 Photography was conducted under controlled lighting conditions with neutral backgrounds to minimize environmental interference.

7.3 No physical manipulation or surface treatment was applied to the object during imaging.

7.4 Post-processing, if any, was limited to overall exposure and white balance adjustments to accurately reflect the material’s visual condition.

 

8. Compliance and Due Diligence

8.1 The compilation and release of this dataset adhere to fundamental principles of academic data management.

8.2 Prior to digitization and release, the dataset underwent careful internal evaluation, including assessment of release risks, usage boundaries, and alignment with academic standards, to ensure transparency, prudence, and procedural integrity.

8.3 This dataset is released solely as a non-interpretive original visual record and does not constitute any form of academic conclusion, cultural attribution, chronological determination, or institutional position.